|Question 6Verbal

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Can field mustard plants grow on Mars? Can pea plants? You might think the answer to these questions is obviously no, but researchers in the Netherlands recently showed that the seeds of many common plant species can germinate in soil designed to simulate Martian conditions, as long as water is supplied. In fact, some species actually did better in Martian soil than in Earth soil: 30 percent of field mustard seeds sprouted when planted in simulated Martian soil, compared with 4 percent that did when planted in soil from their home planet.
Which choice best states the main purpose of the text?
To answer long-standing questions about how Martian soil conditions can be simulated on Earth
A
To present a surprising finding about plants grown in soil intended to be similar to Martian soil
B
To discuss an unexpected result about the role of water in plants grown in simulated Martian soil
C
To explain an important study of differences in the composition of Martian soil and the composition of Earth soil
D