Solve the Problem $336 \mathrm {~m} ^ { 3 }$ B) $146 \mathrm {~m} ^ { 3 }$

Multiple Choice

Solve the problem. Use π = 3.14 when necessary.
-Three people build a rectangular building 8 m wide, 6 m long, and 7 m high. How many cubic Meters does the shed contain?

A) $336 \mathrm {~m} ^ { 3 }$
B) $146 \mathrm {~m} ^ { 3 }$
C) $2688 \mathrm {~m} ^ { 3 }$
D) $21 \mathrm {~m} ^ { 3 }$