My students found the following multiple choice question quite difficult. Choose the best answer and explain which 'keywords' helped you to get that answer.
According to the writer, there are difficulties explaining how the Lapita* accomplished their journeys because
A) the canoes that have been discovered offer relatively few clues.
B) archaeologists have shown limited interest in this area of research.
C) little information relating to this period can be relied upon for accuracy.
D) technological advances have altered the way such achievements are viewed.
Part of the passage:
There is one stubborn question for which archaeology has yet to provide any answers: how did the Lapita accomplish the ancient equivalent of a moon landing, many times over? No-one has found one of their canoes or any rigging, which could reveal how the canoes were sailed. Nor do the oral histories and traditions of later Polynesians offer any insights, for they turn into myths long before they reach as far back in time as the Lapita.
Source: Cambridge IELTS 10, page 75.
*The Lapita were an ancient tribe / people