Which of the following statements is NOT a fact about Alvin? A. It can carry explorers as
Which of the following statements is NOT a fact about Alvin?
A. It can carry explorers as deep as 6,500 meters.
B. It has played a key role in various important undersea expeditions.
C. It was launched in the sixties of the twentieth century.
D. It has been used for more than 40 years.