Answer:
C. 5/18
Step-by-step explanation:
A quadrilateral is any shape with 4 sides, therefore a rectangle is a circle while the other ones are not. Since there are 5 rectangle cards, the answer will be 5 over the number of total cars
8 triangle cards + 5 rectangle cards + 5 circle cards = 18 total cards
5 rectangle cards out of 18 total cards
5/18
C. 5/18
