D. energy
It is the magnitude and the direction that the scientist considered to measure the aspect of force.
=> Magnitude can be describe in 3 terms.
In mathematics it is considered as the relative size of an object.
IN Astronomy, it is considered as the measure of brightness and differences of brightness in astronomy study
And in earthquake, it is a measure of the energy of earthquake.
=> Direction is a course or an explicit instruction where a certain object move.
