I would go with <em>b. more efficient ships</em>.
Mechanical motors were very helpful, they helped the ship move, but I don't believe they were the development that aided the explorers the most.
Sure, they could've made maps, but what was the point? If they already knew the layout of the oceans and lands, then they could've easily traveled wherever they pleased without trouble. This also applies for the spherical globe.
A greater supply of efficient ships helped sailers get by tougher tides and harsher weathers. Ships were produced to be better, stronger, and more durable. They were able to handle more weight and carry more passengers.
Furthermore, the production of efficient ships were the development that most aided explorers in their ability to sail the oceans to discover the New World during the Age of Discovery.
(This is all from my logic. I've not read your lesson, therefore, I do not truly know the answer other than using my common sense.)
Hopefully, this helps.
Your answer would be B. He's talking about not being able to prove his age because he hasn't never seen a real record of his birth or anything else that would give him an idea of how old he is, so no real way to actually prove it.
The answer is that the author has to bring to life a musical composition with only words.
Beethoven was a famous composer who had multiple works of art glossing mainly over piano, and orchestra. Explaining a piece of music to others, with only words would be, in other words. . . hard.
Hope this helps!!!
-The Scarlett Pimpernel
the deeper he goes into Hell, the lower levels of it, the sins become worse. Starting from Limbo, where the sinners haven't committed anything that serious, until he gets to the ninth circle where the worst sinners are.
