Answer :
d. A skull with a large sagittal crest indicates that a fossilized ape is a hominin.
A hominine is a member of the subfamily Homininae: gorillas, chimpanzees, and human beings (excludes orangutans). A hominin is a member of the tribe Hominini: chimpanzees and human beings. 'Hominin' is a time period given to human beings and all of our extinct bipedal ancestors – the ones ancestors who walked upright on feet. 'Hominid' is the time period given to all cutting-edge and extinct remarkable apes, consisting of human beings, chimpanzees, gorillas, orangutans and all their instantaneously ancestors.
Thus, option d is correct.
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