Somebody got me ? lol just trying to graduate

The answer is B because it says he does all these things almost blind. It's really hard to see when your eyes are still in sleep mode but if you have a routine you constantly follow then after awhile it becomes a habit or another way to say it is that it becomes second nature to you like breathing. (If you don't know what second nature means just look up the definition, and you don't even need to read the full definition to understand it)

answer is b,

"the tracer looks harmless in flight, but the pilot’s bitten lips and white knuckles suggest how dangerous it can be."

it was correct.