The answer is D. The country will fall apart without it.
Answer:C
Explanation: Thats the answer
'Selling one's soul' means to do anything, no matter how immoral, to achieve an objective. It basically means not to do anything to reckless for a few points on a grade. For example cheating.
The answer to you question could be while staring at the sun, it hurts my eyes or it could when i stare at the sun, it hurts my eye.