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The statement, 'if life had gained a foothold on such a planet' means that

  • A.if there is life on the planet, it would be like ours
  • B.if we go there, we can develop it like the Earth
  • C.even if we try, we cannot go and live there
  • D.it is impossible for life to develop there

Answer: A

The phrase means that if there is life on the planet, it would be like ours.

'Gained a foothold' means became established. The sentence continues that life closely paralleling our own could then have developed, so the clause is about life that has taken hold on such a planet and what it would resemble.

Option B has people going there and developing life, which the text does not say. Option C says we cannot go and live there and option D says life could not develop, and neither is stated; the passage says that development is possible.

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