Each of the integers from 1 to 20 is written on the a seperate index

Each of the integers from 1 to 20 is written on the a separate index card and placed in a box. If the cards are drawn from the box at random without replacement, how many cards must be drawn to ENSURE that the product of all the integers drawn is even? (A) 19 (B) 12 (C) 11 (D) 10 (E) 3 Project (…)