Final answer:
The tooth comb is comprised of the incisors and sometimes canines, with the eight incisors serving as the primary components for biting into food.
Step-by-step explanation:
The tooth comb is a specialized feature found in some mammals which assists with grooming and feeding. However, when referring to the human dentition, the teeth that typically make up the tooth comb are not molars or premolars but rather the incisors and sometimes the canines. Specifically, the eight incisors, which include four on the top and four on the bottom, serve as the sharp front teeth used for biting into food. Canines may contribute to the comb-like structure in certain primates but are not typically part of a human's tooth comb. So, the correct answer to 'The tooth comb is composed of which teeth?' would be option (d) Incisors and canines.