Apizza restaurant markets 3 versions of its crazy combo: combo 1 contains
3 cheese pizzas and 1 pepperoni pizza, combo 2 contains 2 cheese pizzas
and 2 pepperoni pizzas, and combo 3 contains 1 cheese pizza and 3
pepperoni pizzas. mr. jenkins orders 5 combo 1s, 2 combo 2s, and 3 combo 3s.

which of the following is a valid conclusion?

a. the probability that mr. jenkins will choose a pepperoni pizza at
random is 11/40.

b. the probability that mr. jenkins will choose a
pepperoni pizza at random is 9/10.

c. the probability that
mr. jenkins will choose a cheese pizza at
random is 9/20.

d. the probability that mr. jenkins will choose a cheese pizza at
random is 11/20.