A risk corridor is one of the main provisions, albeit not the only one, that protects the insurance industry from hitting rock bottom, like it did earlier in the decade. 


A. protects the insurance industry from hitting rock bottom, like it did 

B. protect the insurance industry from hitting rock bottom, as it did 

C. protects the insurance industry from hitting rock bottom, as it did 

D. protect the insurance industry from hitting rock bottom, like 

E. protect the insurance industry from hitting rock bottom, like they did


A risk corridor is one of the provisions that

There are many provisions that protect the insurance industry …… A risk corridor is one of them.


The relative pronoun “that” connects to the preceding noun- “provisions”

Now we have to use a plural verb - protect- for provisions- eliminate options A and C.


protects the insurance industry from hitting rock bottom, like it did earlier in the decade. 


What hit rock bottom?

 Definitely not provisions, definitely not risk corridor. 

It is the insurance industry that hit rock bottom, as it ( insurance industry) did earlier in the decade. 

We need to use a singular pronoun “it” to refer to “insurance industry”

Eliminate E

We have to use the conjunction "as" because we are comparing actions (hitting rock bottom)

Eliminate D


Option B is the correct answer.