For all positive integers m, [m]=3m when m is odd and [m]=(1/2)*m when m is even. What is [5]*[6] equivalent to?
Select the correct option:
A) [ 45 ]
B) [ 30 ]
C) [ 15 ]
D) [ 5 ]
E) [ 50 ]

Rationale: "[ 5 ] * [ 6 ] = 15 * 3 = 45 = [ 15 ] the answer is c ."
Answer: C