Which one of the following is a primate ?

Among the given options, the Loris is the only primate. Specifically, slow lorises (genus Nycticebus) are prosimian primates belonging to the family Lorisidae [t2][t3]. They are characterized by arboreal lifestyles, binocular vision, and opposable thumbs used for a firm grip while climbing [t3][t5]. They are unique as the world's only venomous primates [t2]. In contrast, the other options belong to different mammalian orders: Bears belong to the order Carnivora [c2][c3], Otters are also members of Carnivora (specifically the family Mustelidae) [c2], and Pangolins belong to the order Pholidota. While primates like macaques and apes are frequently mentioned in conservation contexts [c4][c5], the loris represents the strepsirrhine branch of the primate lineage, sharing closer genetic ties with lemurs and tarsiers than with the other animals listed [t3].

Sources

1. [1] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 12: Major Crops and Cropping Patterns in India > Biotic: Living > p. 103
2. [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 5: Biodiversity and Legislations > the wildlife act, 1972 > p. 14
3. [3] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 11: Schedule Animals of WPA 1972 > Schedule 1 and part II of Schedule 2 > p. 171
4. [4] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 12: Major Crops and Cropping Patterns in India > Carnivorous Animals > p. 82