Direction. In the following questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as

(A)If both assertion and reason are true and reason is the correct explanation of the assertion,
(B) if both assertion and reason are true but reason is not correct explanation of the assertion.
(C) if assertion is true, but reason if false,
(D) if both assertion and reason are false

Assertion : Soft iron is preferred for making electromagnets.
Reason : Owing to low value of retentivitiy, the residual magnetism left in the soft iron is very small, when the current is switched off.

Options

A. magnetic saturation limit is high and retenitivity and coercivity are small
B. retentivity is high
C. coercivity is high
D. area of hysteresis loop is large