Let p, r, and t be different prime numbers;
- Integer multiples of p form set A,
- Integer multiples of r form set B,
- Integer multiples of t form set C.
It is known that two of the numbers 220, 245, 330, and 350 are elements of the blue-colored set, and the other two are elements of the yellow-colored set. Accordingly, what is the sum $\mathbf { p } + \mathbf { r } + \mathbf { t }$?
A) 10
B) 14
C) 15
D) 21
E) 23