Yesss most is an idefinite pronoun
(p.126, The African American and the Settling of the West, Sarah Nichols and Marie Hernandez, ed.Aaron Wilds.)
Answer: D a model rocket takes off.
Explanation: when it takes off there is in balanced force because it is moving in one direction.
A scientific article on the benefits of community service is the correct answer :) All the others are irrelevant or too old.
Answer:
I DON'T KNOW DUDE IT'S DIFFERENT