A. The 2 ways of solving your problem are using a brace to move your teeth together or closing the gap with bonding or porcelain veneers.

The problem with closing such a large gap with bonding/veneers is that the teeth end up looking too wide. A good solution would be to use a brace to partially close the gap to 2 mm and place bonding/veneers on the 4 front teeth to maintain a proper proportion of the size of the front teeth.