GMAT Sentence Correction (SC) | Re: Because the economic cycle in the United states

during its 20-year interval between its recessions - this is the right answer choice C reasons are:

1. The "its" pronoun points to United States / United States economy.
2. during an interval "between X and Y" an alternative form of this sentence structure that is grammatically acceptable is used in C such as "interval between its recessions"
.
Correct choice is C.

---