which method to declare this array?

[B031110034]

const int MATRIX=10;

char noMatrix[MATRIX]={"BC0123","BC1234","BC2345","BC3456","BC4567","BC5678","BC6789","BC7890","BC8900","BC9999"};

OR

char MATRIX[10][7]={"BC0123","BC1234","BC2345","BC3456","BC4567","BC5678","BC6789","BC7890","BC8900","BC9999"};

//help to decide which method is correct.