Why didn't Chuchu stay calm?

1. It was because Chuchu felt his old master was so close to him.
2. He felt his old master was so close to him.
3. He felt his old master was near him.
4. He felt his old master was in the subway.
5. He felt his old master was not far away.
6. It was because he felt his old master was around him.
------------------
Are the answers all suitable?

Yes, they are all suitable.

box is trash

Based on the given options, all of them seem to convey the reason why Chuchu did not stay calm, which is because he felt his old master was nearby or close to him. However, it's important to note that without any further context or additional information, it is difficult to determine the most accurate answer. The suitability of the answers depends on the specific situation and the intent of the statement.