My reasoning for the correct answer B:

The premises describe that consciousness seem to come from physical processes, and physical theories explain physical structures and functions, then jumps to conclude that physical theories CAN'T explain consciousness.

What's the gap? - When anticipating, I thought the gap in reasoning was that in its conclusion to say that physical theories can't explain consciousness, it doesn't explain why the explanation of physical structures and stuff DOESN'T fully explain consciousness. So it must be assuming that to explain consciousness, there must be some component outside of that physical function/systems realm. ---> B

hi Kevin!!