Solve the Problem $3.1 \mathrm {~m}$ By $6.3 \mathrm {~m}$ Is Surrounded by A

Multiple Choice

Solve the problem.
-A rectangular pool $3.1 \mathrm {~m}$ by $6.3 \mathrm {~m}$ is surrounded by a $1.7 \mathrm {~m}$ wide sidewalk. Find the area of the sidewalk.

A) $19.53 \mathrm {~m} ^ { 2 }$
B) $43.52 \mathrm {~m} ^ { 2 }$
C) $21.76 \mathrm {~m} ^ { 2 }$
D) $32.4 \mathrm {~m} ^ { 2 }$