Correct Answer  Option 2 : Earth will leave the solar system
The correct answer is option 2) i.e. Earth will leave the solar system
CONCEPT:

Law of Universal Gravitation: It states that all objects attract each other with a force that is proportional to the masses of two objects and inversely proportional to the square of the distance that separates their centres.
It is given mathematically as follows:
\(F = \frac{Gm_1m_2}{R^2}\)
Where m1 and m2 are the mass of two objects, G is the gravitational constant and R is the distance between their centres.
 The gravitational constant G establishes a relationship between gravitational force, mass, and distance.
 The value of G is 6.67 × 1011 N kg2 m2.
EXPLANATION:
 Gravitational force is a centripetal force that helps the Earth to move around the Sun.
 If the value of G decreases, the gravitational force between the Earth and Sun decreases.
 Over a long period of time, the gravitational force will become so weak that it will not support the movement of Earth around the Sun in a closed orbit.
 As a result, the Earth is likely to move away in a tangential path to orbit.
 Thus, there is a probability that Earth will leave the solar system.