December2015 cs Q7

0. Given the following set of prolog clauses:
father(X, Y):
parent(X, Y),
male(X),
parent(Sally, Bob),
parent(Jim, Bob),
parent(Alice, Jane),
parent(Thomas, Jane),
male(Bob),
male(Jim),
female(Salley),
female(Alice).
How many atoms are matched to the variable ‘X’ before the query father(X, Jane) reports a Result?

Answer
Comment
Array

Option : B
Explanation :

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