Option 1 suggests that both the assertion and reason are true, and that the reason correctly explains the assertion. However, although it appears that Reason accurately references Newton`s First Law or law of inertia, it doesn`t accurately explain the Assertion.

Option 2 is the correct answer because both Assertion and Reason are accurately referencing principles of physics, but Reason doesn`t explain Assertion correctly. A man can indeed propel himself by whistling on a frictionless surface because of the law of conservation of momentum (illustrated in Assertion) and Reason is also correct because it states Newton`s First Law of motion. However, the first law of motion isn`t the underlying principle that explains why the man can move when on a frictionless surface when he whistles.

Option 3 contradicts Newton`s First Law of Motion because it suggests that Reason is false.

Option 4 is incorrect because, although the explanation in Reason is correct, Assertion is also true because it is based on the principle of conservation of momentum. The man whistling would cause a reaction force that would push him forward on a frictionless surface.