Find the Volume of the Indicated Region $x ^ { 2 } + y ^ { 2 } = 49$

Multiple Choice

Find the volume of the indicated region.
-the region enclosed by the cylinder $x ^ { 2 } + y ^ { 2 } = 49$ and the planes $z = 0$ and $x + y + z = 14$

A) $343 \pi$
B) $686 \pi$
C) $1029 \pi$
D) $1372 \pi$