Help i dont know what it is

object B of 30 kg

Explanation:

an example be..let object B is earth and object A is moon the gravitational force of earth is greater than moon because the higher the mass the more the gravitational force towards it.

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.