Hysteresis loops for two magnetic materials A and B are given below : <br> <br> These materials are used to make magnets for electric generators, transformer core and electromagnet core. Then it is proper to use :

Question

https://clay6.com/mpaimg/1049_a.jpg

( A ) A for electric generators and transformers
( B ) A for electromagnets and B for electric generators
( C ) B for electromagnets and transformers.
( D ) A for transformers and B for electric generators.