What is right way to Initialize array?

A. int num[6] = { 2, 4, 12, 5, 45, 5 };
B. int n{} = { 2, 4, 12, 5, 45, 5 };
C. int n{6} = { 2, 4, 12 };
D. int n(6) = { 2, 4, 12, 5, 45, 5 };