Find the Area of Triangle ABC with the Given Parts

Multiple Choice

Find the area of triangle ABC with the given parts. Round to the nearest tenth when necessary.
- $$\begin{array} { l } \mathrm { A } = 31 ^ { \circ } 40 ^ { \prime } \\\mathrm { b } = 19.3 \mathrm {~m} \\\mathrm { c } = 7.9 \mathrm {~m}\end{array}$$

A) $20 \mathrm {~m} ^ { 2 }$
B) $80 \mathrm {~m} ^ { 2 }$
C) $40 \mathrm {~m} ^ { 2 }$
D) $82 \mathrm {~m} ^ { 2 }$