The correct option to complete the sentence is C. Having played. Let's break down why this is the best choice and analyze the other options. Explanation of the Correct Answer (C: Having played)

1. Understanding the Context: The sentence begins with "....for the team for six years," which indicates that the subject has been involved with the team for a significant period. The phrase "he decided to join another" suggests a change or transition after this period of involvement.
2. Using "Having played": The phrase "Having played" is a perfect participle construction. It indicates that the action of playing for the team was completed before the action of deciding to join another team. This construction effectively conveys that the decision to leave was made after the player had completed his time with the team.
3. Grammatical Structure: The perfect participle ("Having played") is used to show that one action (playing for the team) was completed before another action (deciding to join another team). This is a common structure in English to indicate a sequence of events.

Why the Other Options Are Incorrect A. When he played - Explanation: This option suggests a specific time frame during which he played. It implies that the decision to join another team occurred at the same time as he was playing, which does not fit the context of the sentence. The sentence is about a completed action (his time with the team) leading to a subsequent decision, not simultaneous actions. B. Playing - Explanation: This gerund form ("Playing") does not convey the completion of the action. It suggests an ongoing action rather than one that has been completed. The sentence would read awkwardly as it would imply that he is still playing while making the decision, which contradicts the context of having played for six years. D. In playing - Explanation: This option is also incorrect because "In playing" suggests that the action is still ongoing or that it is a general activity. It does not indicate that the action of playing has been completed. The sentence would not make sense as it would imply that he is currently engaged in playing while deciding to join another team. Summary of Key Points

• Correct Answer: C. Having played
• Reasoning: "Having played" indicates a completed action before the decision to join another team, fitting the context of the sentence.
• Incorrect Options:
• A. "When he played" suggests simultaneous actions, which is not the case.
• B. "Playing" implies an ongoing action, not a completed one.
• D. "In playing" also suggests ongoing activity, which does not fit the context.
• Grammatical Structure: The perfect participle is used to show the sequence of actions clearly.

Revision Summary

• Use "Having + past participle" to indicate a completed action before another action.
• Ensure the chosen phrase fits the context of the sentence regarding time and completion.
• Avoid gerunds or phrases that imply ongoing actions when the context requires completion.