If a 72-gram rocket will reach 730 feet, what motor will you need to purchase in order to achieve this goal?

an obstruction

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.

continuous conducting path for current, power supply