Six friends go to pizza corner there are 2 types of pizzas. And six different flavors are there they have to select 2 flavors from 6 flavors. In how many ways we can select?	Choose the correct option: A) 10 B) 15 C) 20 D) 30 E) 40
6C2 = 6*5= 
<gadget id="calculator">6*5</gadget>
<output>30</output>
30   Answer 30
<result>D</result>
Six friends go to pizza corner there are 2 types of pizzas. And six different flavors are there they have to select 2 flavors from 6 flavors. In how many ways we can select?