It [the first week’s payment] represented a week of very hard work—so hard that it might have been described as slavery if it hadn’t been for its aim and end.

It [the first week’s payment] represented a week of very hard work—so hard that it might have been described as slavery if it hadn’t been for its aim and end.
A、…the aim of this slave-driving work was hard to describe.
B、…the extremely hard work made it unacceptable for any payment.
C、…but for the pay， I wouldn’t have been able to do such heavy work.
D、…if it hadn’t been for the high pay， I wouldn’t have accepted such heavy work.
正确答案：D