Instead of either it should be ‘all’.
They’re similar since they end in -ter and -tor, which generally sound similar, but they’re different as “director” is a noun meaning a person who directs something, while “shatter” is a verb meaning to break something into tiny pieces (you can shatter a window, a glass, a plate, etc).
Answer: 1. Prior to that date, the voting age had been 21 in a majority of the states
2. The drive to lower the voting age from 21 to 18 grew across the country during the 1960s
Explanation: