The passage is primarily concerned with which of the followings?
A. disproving a widely accepted theory
B. initiating a debate about the possibility of life on Mars .
C. presenting evidence in support of a controversial claim .
D. describing the various discoveries made convening the possibility of life on Mars.
সঠিক উত্তরঃ
D.
describing the various discoveries made convening the possibility of life on Mars.
