Will mark brainliest muscles make up more than of a person's body mass. a. 10% b. 25% c. 40% d. 75%

C 40%. hope this helps.

Hello there,

Muscles make up 40% of our body.

Hope I helped :)

South carolina was so angry about the election of lincoln that they seceded from the union on december 20, 1860. they attacked fort sumter later, on april 12, 1861.