Choose the set of figure which follows the given rule. Rule: Closed figures gradually become open and open figures gradually become closed. 
Step 1: The rule requires a gradual transformation:
• Closed figures should progressively open.
• Open figures should progressively close.
Step 2: Analyze each option:
Option (1): • First figure is completely closed.
• Second figure is partially open.
• Third figure is more open.
• Fourth figure is fully open. This shows a clear gradual opening.
Option (2): No consistent gradual opening or closing; changes are irregular.
Option (3): Figures remain mostly open without a clear transition.
Option (4): The sequence does not show a gradual pattern; it jumps between open and closed.
Step 3: Only set (1) strictly follows the given rule.
Based on the statements in (1) – (4), which option/s is/are correct?
(1) Thor has a female sibling
(2) Thor has a sister
(3) Thor has visited New Delhi
(4) Thor has visited India
In the following truth table, what does X stand for?
