GRE Sample Test 2 Verbal Reasoning 1

You are given the clue that the beliefs “are in conflict” and “cannot all be correct.”
Therefore, whatever goes into the blank must be synonymous with correct or something we can infer correctness from. The correct answer is axiomatic, which means self-evident or universally true. Disputable is the opposite of what the sentence requires, and ubiquitous and historic are not synonymous with self-evident. Although empirical, meaning derived from observation, might fit science, it is not a good fit for religion.