A patient complains of the discolouration of an upper central incisor. Radiographically, the pulp chamber and the root canal space are obliterated and the periodontal ligament space appears normal. The most appropriate management would be to

fabricate a porcelain veneer.

fabricate a metal-ceramic crown.

perform root canal treatment and fabricate a porcelain veneer.

perform root canal treatment and fabricate a post retained metal-ceramic crown.

perform root canal treatment and nonvital bleaching.