Select the correct Active/Passive form of the given sentence.

"Hasn’t the train arrived yet?" Rahul asks a fellow passenger.

Rahul asks a fellow passenger if the train has not arrived yet.

The correct active/passive form of the given sentence is Rahul asks a fellow passenger if the train has not arrived yet.

The sentence is in the present perfect tense, which is used to describe an action that happened in the past and is still relevant to the present. The active voice of the sentence is formed by putting the subject of the sentence before the verb and removing the word "by." In this case, the subject of the sentence is "Rahul" and the verb is "ask." So, the active form of the sentence is "Rahul asks a fellow passenger if the train has not arrived yet."

The other options are incorrect because:

• Rahul asks a fellow passenger if the train had not arrived yet.” This is incorrect because the word "had" is in the past perfect tense, which is used to describe an action that happened in the past and is still relevant to the present. The sentence is about an action that is happening now.
• Rahul asks a fellow passenger if the train has arrived yet.” This is incorrect because the word "has" is in the present tense, but the sentence is about an action that has not happened yet.
• Rahul asks a fellow passenger if the train had not arrived then.” This is incorrect because the word "then" refers to a specific time in the past, but the sentence is about an action that is happening now.