<Li> Reptiliomorpha <Ul> <Li> various extinct clades </Li> <Li> Amniota (Crown group) <Ul> <Li> Synapsida </Li> <Li> Sauropsida </Li> </Ul> </Li> </Ul> </Li> <Ul> <Li> various extinct clades </Li> <Li> Amniota (Crown group) <Ul> <Li> Synapsida </Li> <Li> Sauropsida </Li> </Ul> </Li> </Ul> <Li> various extinct clades </Li> <Li> Amniota (Crown group) <Ul> <Li> Synapsida </Li> <Li> Sauropsida </Li> </Ul> </Li>

All primates belong to which biological class a) mammalia b) aves c) synapsida d) reptilia