Topic: Sequence of Tense,

Best Answer Explained in Below-:

The correct choice in the sentence "When your plane...., please call me." is C) "arrives." This is because the word "when" introduces a conditional statement about a future event. In English, when talking about a future event that is dependent on another future occurrence, we use the present simple tense.

The present simple tense ("arrives") is appropriately used here because it conveys that the action—your plane arriving—will occur in the future, but it is framed as a specific condition that leads to a subsequent action (calling). This construction is standard in English for future events tied to conditions, exemplified in phrases like "When it rains, I bring an umbrella."

Options A) "will arrive" and D) "will have arrived" imply certainty or a completed action in the future but do not fit the structure typically used after "when." Option B) "arrived" suggests a past event, which does not apply here. Therefore, C) "arrives" is the grammatically correct choice, effectively conveying the intended meaning while adhering to English language conventions.