Israel is to Christianity as India is to Buddhism; in both cases, the religion did not thrive in the country of its origin.
Israel has the relation to Christianity that India has to Buddhism; in both cases, the religion did not thrive in the country of its origin.
Israel is to Christianity as India is to Buddhism; in both cases, the religion did not thrive in the country of its origin.
Israel has the relation to Christianity that India has to Buddhism; in both cases, the religion did not thrive in the country of its origin.
This is a very tricky idiom for comparing two relationships. If two relationships are being compared, that of X & Y and that of A & B, and are essentially the same relationship, then the elegant way to say this is: "X is to Y as A is to B." The phrasing involving the word "relation" or "relationship" is wordy and awkward. It would not be preferred or correct on the GMAT.