A jewelry box containes 3 rings, 7 necklaces, 4 earrings, 5 braceletes and 1 tiara. If 1 piece of jewlery is selected at radom, which two statements are true?

a it is just as likely as not that a ring or necklace will be selected.
b It is impossible that a tiara will be selected.
c It is certain that a necklace will be selected.
d It is likely that earrings or a bracelet will be selected.
e it is unlikely that a tiara will be selected.