【单选题】

Questions 18 to 20 are based on the following passage.At the end of the passage, you will be given 15 seconds to answer the questions.

Now, listen to the passage.
Prince Henry aims to design vessels that couldA．make longer deep-sea voyages.
B．travel faster than those in use at that time.
C．explore the coastline of Portugal.
D．carry larger crews and more cargo than existing ones.