Find the Center of Mass of the Solid Bounded By z

Multiple Choice

Find the center of mass of the solid bounded by $z = 196 - x ^ { 2 } - y ^ { 2 } \text { and } z = 0 \text { with }$ density function $p = k z$ .

A) $( 102,102,102 )$
B) $( 0,0,102 )$
C) $( 0,0,98 )$
D) $( 98,98,98 )$
E) $( 196,0,196 )$