Read the following information carefully and answer the questions that follow :
In a village of Bastar district in Madhya Pradesh, only two types of people live who belong to a tribal class. The first type is known as class A, while the other is known as class B. In that village, there is no other type of person except these two. The activities of both types of people are governed by perfectly patterned norms of social behaviour. Each person of the tribe has to obey the norms. They are rigid about this. As far as marriage is concerned, the following norms are to be followed :
(i) The people of class A cannot marry any other member of their own class, though they can marry member: of class B.
(ii) After being married, each male member ceases to be a member of that class in which he was born by automatically, he becomes the member of the other class to which his wife belongs.
(iii) As far as females are concerned, they remain the members of their own class after being married.
(iv) On his birth, the child automatically becomes the member of his mother's class.
(v) When any male member becomes widower or divorcee, then he again belongs to the group in which he was born
(vi) Nobody can marry more than one person according to social laws.
Any class B female can have (P) Grandfather born in class A
(Q) Grandmother born in class A

Options

A. a. Only (P) can be true
B. b. only (Q) can be true
C. c. Either (P) or (Q) can be true
D. d. Neither (P) nor (O) can be true

Answer

B

Explanation

According to the given norms
The mother of class B female `overset("belongs to")rarr` class B.
So, her father `overset("born in")rarr` class A.
Therefore, her father.s mother or grandmother `overset("belongs to")rarr` class a and her father.s father or grandfather `overset ("born in")rarr` class B.