Options are:
A). mass;
B). motion;
C). motors;
D). heat;
E). energy;
F). wind;
G). fibers;
H). fields;
Given those answer options, answer the question: Fact 1: The mass of an object causes the gravitational force exerted by that object. Fact 2: Gravitation is a universal force of attraction acting between all matter. Given the two facts above, what causes the amount of attraction exerted by an object?
A:
A).