human teeth have all of these characteristic that’s why their dentition refers to as thecodont, heterodont and diphyodont.
Thecodont dentition is an arrangement in which the base of the tooth is completely enclosed in a deep socket of bone is the characteristic of mammalian teeth as seen in humans
Diphyodont dentition is a characteristic of mammals in which milk teeth appear in the young ones but as they grow and jaw becomes larger, milk teeth are replaced by larger permanent ones to fit in the larger jaw bone.
Heterodont dentition occurs in mammals in which there are 4 functionally different types of teeth, namely, flat incisors for cutting, long and pointed canines for tearing flesh and large and broad premolars and molars with flat grinding surface.
Answer : (c)