What is displacement? a. the rate of change of distance of an object over time b. the specific speed and direction in which an object is moving c. the distance between two points and the time taken to travel that distance d. the shortest path between two points, including both distance and direction

The displacement from point A to point B is the length of the shortest path between them along with the direction from A to B.

Choice D

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

i would say