I am not a native English speaker. Maybe the question is stupid...
Each consumer chooses one of the two options: (1) buying one unit; or (2) buying a second unit. When I want to say some consumers (plural) who choose the option (1) or option (2) will do something, is it correct to say: Those who buy one unit will blablabla..., and those who buy a second unit will blablabla...
It is indeed correct to say: someone who buys one unit will blabla..., and someone who buys a second unit will blablabla.... When aggregating multiple consumers, should the "unit" also be aggregated as plurals or not?
Thanks!