The theory says that the moon formed from the dust produced by a collision between earth and another large body. a. capture theory b. impact c. co-formation d. synchronous

B. impact

The impact theory says that the moon formed from the dust produced by a collision between earth and another large body.  The theory hypothesized that a planet like body collided with Earth and was named as Theia. The released particles containing dust combined to create moon.

i believe your answer would be c.. : )