ACCORDING TO THE SECOND PARAGRAPH, IN THE 1950S AND EARLY 1960S, R...

38. According to the second paragraph, in the 1950s and early 1960s, recreational scuba diving was a

sport limited because _______.

a. divers did not like to take part in any intensive training courses

b. there were not any intensive training courses for divers

c. there were not enough kit for many divers

d. kit and intensive training were too expensive for many people to afford