Translate the following sentences into Chinese. Choose the best answer.4. He lost all his money during the economic crisis and had to start again completely from scratch.

A. 他在经济上受到重创，不得不完全重新开始。
B. 他在这次经济危机中损失了所有的钱，只好再从头做起。
C. 他在这次经济危机中损失了所有的钱，不得不想尽办法从头开始。