Answer:
C. and E.
Step-by-step explanation:
Complimentary angles are two angles that both measures create the same degree as a right angle, or 90 degrees
Looking at the graph, we see 1 right angle, which is 9. Therefore we can cross out any answer that includes <9 in it.
Let's look at 7, this is an obtuse angle, WAY more than 90 degrees, therefore we can cross out any answer that includes <7 in it.
Meaning we only have three exceptable degrees, <6, <5, and <8.
There are only 2 answers that follow these rules. C and E
