Help please?!
Ping is deciding what to choose for dinner from a menu. He can choose 1 of 3 pasta meals, 1 of 7 chicken meals, or 1 of 3 fish meals. How many ways can Ping choose a dinner meal?
a. 3

b. 13

c. 30

d. 63
Am I supposed to multiply to get the answer? Or add? I'm a bit lost!!