The force of attraction between two objects of masses 'M' and 'm' which lie at a distance 'd' from each other is directly proportional to the-

Correct option is B

The correct answer is (b) Product of the masses of objects M × m.
· This principle is derived from Newton's Law of Universal Gravitation, which states that every particle of matter in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
· Mathematically, this force F can be expressed as F = G(M * m)/d*2 ​, where G is the gravitational constant. Thus, the force of gravitational attraction increases with the product of the masses of the two objects and decreases with the square of the distance between them.