Juan is picking out an outfit to wear. The organized list below represents the sample space of all possible outfits.

Blue shirt - Black pants
Blue shirt - White pants
Blue shirt - Blue pants
White shirt - Black pants
White shirt - White pants
White shirt - Blue pants
Tan shirt - Black pants
Tan shirt - White pants
Tan shirt - Blue pants

Based on the list, how many different-color shirts does Juan have to choose from?6

9

3

1