Joanna plans on hanging 3 pictures of different sizes on the wall of her staircase. she thinks it will look best if all 3 rectangular pictures are similar. the two sizes she has already are 25 in. by 35 in. and 35 in. by 49 in. which of the following is a possible size of the third picture?

a.5 in. by 6 in.
b.30 in. by 42 in.
c.45 in. by 70 in.
d.50 in. by 63 in.