Find the Interval of Convergence for the Solution of the Differential

Multiple Choice

Find the interval of convergence for the solution of the differential equation $$3 y ^ { tt } - x y ^ { t } - y = 0$$

A) $[ 3 , \infty )$
B) $[ 0 , \infty )$
C) $( 0 , \infty )$
D) $( - 3 , \infty )$
E) $( - \infty , \infty )$