D. 5 ft
1) Let's visualize it roughly:
2) We need to convert those units into one unit.
6' = 72" 1 foot corresponds to 12"
Considering that the height of Jordan and Missy produces a perpendicular line, and then we have similar triangles then according to Similarity between triangles we can write:
![\begin{gathered} \frac{jordan}{\text{jordan shadow}}=\frac{Missy}{\text{Missy shadow}} \\ (72)/(54)=(x)/(45) \\ 54x=72\cdot45 \\ x=60\~\~ \end{gathered}]()
3) Converting 60" to feet we know that Missy is 5' tall