A triangle has side lengths of (10x + 7y) centimeters, (3x + 3z) centimeters, and (8z +10y) centimeters. Which expression represents the perimeter, in centimeter of the triangle?
a:20yz+21xz
b:13x+10y+18z
c:6xz+18yz+17xy
d:13x+17y+11z​