【求助】大全 sec 12-09

buffonjuventus

Prompted by new evidence that the health riskposed by radon gas is far more serious than was previously thought, propertyowners are being advised by authorities to test all dwellings below thethird floor for radon gas and to make repairs as needed.
(A) property owners are being advised byauthorities to
(B) property owners are advised by authoritiesthat they should
(C) authorities are advising property owners to
(D) authorities are advising property ownersthey（C）
(E) authorities’ advice to property owners isthey should
Key C
请问大家，我明白E的表达不简洁，可是这道题的意思，不是更应该是权威机构的建议被证据prompt么？为什么是Authority被prompt呢？谢谢

alex318

and前后是不是要一致啊？
to test ...... and to make?

buffonjuventus

good point，谢谢alex，忽略了