By saying hat the Greenland sample may be "low-hanging fruit" (Line 1-2, Para. 6), the r
By saying hat the Greenland sample may be "low-hanging fruit" (Line 1-2, Para. 6), the researchers meant that _______. A) the sample was favorable for their test B) the sample made the test more difficult C) the sample brought about litde benefits D) the sample produced unexpected results