Solve the Problem $28 ^ { \circ } 39 ^ { \prime }$

Multiple Choice

Solve the problem.
-In one area, the lowest angle of elevation of the sun in winter is $28 ^ { \circ } 39 ^ { \prime }$ . Find the minimum distance $x$ that a plant needing full sun can be placed from a fence that is $4.5$ feet high. Round your answer to the tenths place when necessary.

A) $8.4 \mathrm { ft }$
B) $11.6 \mathrm { ft }$
C) $7.8 \mathrm { ft }$
D) $8.2 \mathrm { ft }$