For the function \(f\), \(f(x)\) is inversely proportional to \(x\). If \(f(k) = a\), what is the value of \(f(\frac { k } { 3 } )\) ?
(A)\(\frac { a } { 3 } \) (B)\(\frac { 2a } { 3 } \) (C)\(3a\) (D)\(6a\) (E)\(9a\)
C