Figure Matrix - Verbal and Reasoning

Directions to SolveIn each of the following questions, find out which of the answer figures (1), (2), (3) and (4) completes the figure matrix ?
Q1:

Select a suitable figure from the four alternatives that would complete the figure matrix.

A 1

B 2

C 3

D 4

ANS:A - 1

Explanation: In each row, the third figure comprises of a black circle and only those line segments which are not common to the first and the second figures.