Answer:
(E) allow passengers to get in and out more easily
Explanation:
Option E is correct because there is no need for and since the list is still continuous, the use of more there shows that it is a comparison with another vehicle and it is less awkward.
Option A, B and C are wrong because of the and
The year 1492 marks a watershed in modern world history. Columbus's voyage of discovery inaugurated a series of developments that would have vast consequences for both the Old World and the New. It transformed the diets of both the eastern and western hemispheres, helped initiate the Atlantic slave trade, spread diseases that had a devastating impact on Indian populations, and led to the establishment of European colonies across the Western Hemisphere.
This section identifies the factors--including rapid population growth, commerce, new learning, and the rise of competing nation-states--that encouraged Europeans to explore and colonize new lands. It explains why Portugal and Spain were the first to become involved in overseas exploration and why England and France were slow to challenge Spain’s supremacy in the Americas.
I would say B
Hope you got this right :)
