If a mixture of nuts consists of 3 pounds of peanuts, I pound of walnuts, and 5 pounds of cashews, by weight, what fraction of the mixture is peanuts?
(A)\(\frac { 1 } { 9 } \) (B)\(\frac { 1 } { 5 } \) (C)\(\frac { 1 } { 3 } \) (D)\(\frac { 3 } { 8 } \) (E)\(\frac { 1 } { 2 } \)
C