Why did Abu Bakar (r.a) went into the cave Thawr before the prophet (pbuh) entered?

A He wanted to check if there is enough light inside for the Prophet (pbuh)

B He wanted to have the best spot in the cave before Prophet (pbuh) takes it.

C He wanted to make sure that it is safe for Prophet (pbuh) to enter the cave.

D He was afraid of the chasing enemy and wanted to be safe inside.

Correct Answer: Option C