|Question 2Verbal

Source Texts

Text
In a 2020 paper, Arya Udry et al. cautioned that although similarities in the isotopic signatures of elements detected in Mars's atmosphere and in Martian meteorites recovered on Earth make it tempting to treat the geochemical properties of the meteorites as ________ those of Mars's interiors, Mars's geology cannot be ascertained based solely on meteorite-sample analyses.
Which choice completes the text with the most logical and precise word or phrase?
proxies for
A
contrivances of
B
catalysts of
C
deterrents to
D