Help based on the markings which of the following theorems can be used to prove the triangles congruent?

I think the answer for this question is letter C: SAS

there will be 35 boys in each team. : )

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x