What does matter mean

1- The physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.

2-an affair or situation under consideration; a topic.

i think the correct answer is b) humans who reduce their calorie intake by at least 25 percent on a long-term basis will live longer than they would have they not done so. i hope i you out