In the following question, select the answer figure that will fit in the blank space in the question figure, maintaining the pattern in the proper sequence.

The following question contains four rows of figures, as four alternatives. Each row contains four or five different designs. You have to study carefully each row and judge which series of figures follows the stated rule exactly.

Rule: The simple figures become more complex along a row.

The following question contains four rows of figures, as four alternatives. Each row contains four or five different designs. You have to study carefully each row and judge which series of figures follows the stated rule exactly.

Rule: The simple figures become more complex along a row.

The following question contains four rows of figures, as four alternatives. Each row contains four or five different designs. You have to study carefully each row and judge which series of figures follows the stated rule exactly.

Rule: The number of sides decrease in closed figures and the number of sides increases in open figures. 

The following question contains four rows of figures, as four alternatives. Each row contains four or five different designs. You have to study carefully each row and judge which series of figures follows the stated rule exactly.

Rule: Closed figure becomes more and more open.

The following question contains four rows of figures, as four alternatives. Each row contains four or five different designs. You have to study carefully each row and judge which series of figures follows the stated rule exactly.

Rule: The series becomes complex as it proceeds.

The following question contains four rows of figures, as four alternatives. Each row contains four or five different designs. You have to study carefully each row and judge which series of figures follows the stated rule exactly.

Rule: Sectors get converted to triangles one by one.

The following question contains four rows of figures, as four alternatives. Each row contains four or five different designs. You have to study carefully each row and judge which series of figures follows the stated rule exactly.

Rule: Any figure can be traced by a single unbroken line without retracing.

The following question contains four rows of figures, as four alternatives. Each row contains four or five different designs. You have to study carefully each row and judge which series of figures follows the stated rule exactly.

In each of the following rows, five figures are given. One of the four rows contains a design that follows a certain pattern, which is not followed in the figures of other rows. Choose the row containing these figures.