Rule detection

1.	Choose the set of figures which follows the given rule. Rule: Closed figures losing their sides and open figures gaining their sides.
	A. 1 B. 2 C. 3 D. 4

2.	Choose the set of figures which follows the given rule. Rule: Any figure can be traced by a single unbroken line without retracting.
	A. 1 B. 2 C. 3 D. 4

3.	Choose the set of figures which follows the given rule. Rule: Closed figures gradually become open and open figures gradually become closed.
	A. 1 B. 2 C. 3 D. 4

4.	Choose the set of figures which follows the given rule. Rule: Closed figures become more and more open and open figures become more and more closed.
	A. 1 B. 2 C. 3 D. 4

5.	Choose the set of figures which follows the given rule. Rule: The series becomes complex as it proceeds.
	A. 1 B. 2 C. 3 D. 4