请问这道题目的提干翻译成中文是什么意思？

og11阅读第一篇第二题，看不懂问的什么意思。

2.     The passage suggests that Jarvis’s work has called into question which of the following explanatory variables for naked mole rat behavior?

(A) Size

(B) Age

(C) Reproductive status

(D) Rate of growth