10. Ben has 30 pencils in a box. Each of the pencils is one of 5 different colors, and
there are 6 pencils of each color. If Ben selects pencils one at a time from the box
without being able to see the pencils, what is the minimum number of pencils that he
must select in order to ensure that he selects at least 2 pencils of each color?
A. 24
B. 25
C. 26
D. 27
E. 28