What are two methods that can be used to evaluate the condition of a loop at the start of each iteration?

What are two methods that can be used to evaluate the condition of a loop at the start of
each iteration? (Each correct answer presents a complete solution. Choose two. )

A.
If

B.
Do. . . While

C.
For

D.
While

Explanation:
For and While constructs check at the start of each iteration.