George’s cat had a litter of seven kittens. four of the kittens are male. three are female. which set of symbols correctly describes the gender of the kittens?

a. xx, xx, xx, xx, xy, xy, xy

b. xy, xy, xy, xy, xx, xx, xx

c. y, y, y, y, x, x, x

d. x, x, x, x, y, y, y

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.