In a while loop, ___________ . a. a Boolean expression is evaluated; if it is true, the loop is over b. the loop body always consists of a single statement c. the loop body always executes at least...

In a while loop, ___________ .

a. a Boolean expression is evaluated; if it is true, the loop is over

b. the loop body always consists of a single statement

c. the loop body always executes at least one time

d. the Boolean expression is always evaluated at least once