How did Peace Corps participation in 1966 compare to the participation in 2017?

In 1966, about 15,000 Peace Corps volunteers served in roughly 46 countries. In 2017, about 7,000 volunteers served in around 60 countries. So participation involved fewer volunteers but more countries in 2017, meaning 1966 had fewer volunteers serving in more countries? No—the comparison asks how 1966 differed from 2017: 1966 had more volunteers serving in fewer countries, which is choice B.

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