IQ test (Blood relation)

In this video I will discuss, How you should Approach Problems Based on Coded Blood Relations and Get Accurate answer in Minimum time Possible. Blood Relation often comes in Every Competitive Exams like SBI & Bank PO, CAT, RRB, etc. Problem: Pointing to a man, a woman said, “His mother is the only daughter of my mother.” How is the woman related to the man? A) Mother * B) Daughter C) Sister D) Grandmother