When Mr. Smith took over the company, it was already heavily and had no money to pay the

When Mr. Smith took over the company, it was already heavily and had no money to pay the workers.
A. in danger
B. in relief
C. in debt
D. in return

A. in dangerB. in relief(答案→)C. in debtD. in return解析：考查短语辨析。A. in danger在危险中；B. in relief简单地说；C. in debt负债；D. in return作为回报。句意：当史密斯先生接管公司的时候，公司已经严重负债且没有钱付工人工资。故C正确。

这个解释是对的