He tried to deal with the ever-increasing burden of his work,but finally and had to take

He tried to deal with the ever-increasing burden of his work,but finally and had
to take a complete rest.
A. broke away
B. broke up
C. broke down
D. broke out

A. broke awayB. broke upC. broke downD. broke out解析： 考查动词词组辨析。break away脱离，摆脱；break up解散；打破；break down打破；精神不支，精神垮掉；break out爆发。根据题意可知，C项正确，即最后他支持不住了。

我也是这个答案