**Concept: The question tests on the ability to solve basic questions on Quadrilaterals**

**Solution:**

In a parallelogram ABCD, angle B and angle C are adjacent angles and therefore are supplementary (Sum = 180)

Angle B = 5C

B + C = 180

5C + C = 180

C = 30

Therefore B = 5 * 30 = 150**Option E**