Julian's shadow is 6 feet long. At the same time a 31 foot tall building casts a shadow that is 28 feet long. What proportion could be used to find Julian's height?

Responses
A x/31 = 28/6
B x/6 = 28/31
C x/6 = 31/28
D 6/x = 31/28
E x/28 = 31/6

no, x is the height.

height:shadow is constant, so
x/6 = 31/28

B x/6 = 28/31