I need help for this multiply choice geometry problem

Answer:
Answer B
Step-by-step explanation:
As we can see in the figure, AB is parallel with DE, AE and BD intersect each other at point C.
=> So that ACB and ECD are two congruent triangles.
According to the features of two congruent triangles, we have:
AC/EC = CB/CD = AB/ED
=> 4/8 = 3/6 = AB/ ED
=> AB/ ED = 1/2
=> AB = 1/2 ED
=> AB = 1/2 x 3
=> x= 0.5
So the value of x if 1.5
Correct answer is B