Which of the following represents the measures of all angles coterminal with a –220° angle?

Which of the following represents the measures of all angles coterminal with a –220° angle?

360 + 140n,

a. for any whole number n 360 + 140n,
b. for any integer n 140+ 360n,
c. for any whole number n 140 + 360n,
d. for any integer n