3. The main purpose of the seventh paragraph (highlighted portion) is to:

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

The seventh paragraph mainly describes Leland Hamlin's joyful discovery that there are various life forms on this planet. While previous reports suggested that only lower biological forms existed, Leland Hamlin believes the reports are not reliable.

Item C: "Indicates that Leland Hamlin has high hopes that the earlier reports about the xilan planet are inaccurate" is in line with the general meaning of the paragraph.

Item A: It does not explain the difference between higher organisms and lower organisms.

Item B: There is no comparison between the present and the past for the sentiment test of the xilan planet.

Item D: The point is not to inform readers that past reports exist, but to inform readers that past reports may not be accurate.