The while loop has two important parts: a condition that is tested and a statement or block of statements that is executed

Question $30$Answer

a$.$

Both as long as the condition is true and at least once are true, but until the condition becomes true and exactly once are not.

b$.$

as long as the condition is true.

c$.$

exactly once.

d$.$

at least once.

e$.$

until the condition becomes true.