Which of these figures must be a rectangle?
O
A. A trapezoid with at least one right angle
O
B. A trapezoid with two congruent sides
O
C. A parallelogram with at least one right angle
O
D. A parallelogram with four congruent sides

C. a paralelogram with at least one right angle

Step-by-step explanation:

a paralelogram cant have one right angle as the other side would have to have one too.

3/6 chance

step-by-step explanation:

half of the nubers are odd numbers (1,3,5) which in that case if you would be told to simplify it would be 1/2