他们省吃俭用,为了给国家多积累资金. (本题3.5分)

A、 They save food and reduce expenses to accumulate more funds for the state.

B、 They save food and reduce expenses to that to accumulate more funds for the state.

C、 They live frugally to accumulate more funds for the state.

D、 They live frugally so that to accumulate more funds for the state.