I tried but i changed my pfp i dont have photo shop so i tried with out it lol. who likes it? so also since im doing school too here is a random question what is a Economic System?

How are the republican and democratic presidential candidates chosen? a. they are nominated by their state governments. b. each is nominated by his or her respective party. c. each is chosen by the governor of his or her home state. d. they are chosen by the house of representatives.