If a and b are positive integers such that a/b = 2.14…

If a and b are positive integers such that a/b = 2.14, which of the following must be a divisor of a?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #3106