Which correctly shows where a semicolon is needed in the sentence?
a. all astronauts had master’s or doctorate degrees, but only two were jet pilots; consequently, the astronauts with no flight experience had to complete one year of flight training.
b. all astronauts had master’s or doctorate degrees, but; only two were jet pilots consequently, the astronauts with no flight experience had to complete one year of flight training.
c. all astronauts had master’s or doctorate degrees, but only two were jet pilots consequently, the astronauts; with no flight experience had to complete one year of flight training.
d. all astronauts had master’s or doctorate degrees, but only two were jet pilots consequently, the astronauts with no flight experience had to; complete one year of flight training.