Evolutionary ____________ conclude what makes us who we are from the remains of our Ice Age ancestors (including their RNA), whereas ____________ focus on artefacts of a more recent and educated age.
Sociologists, archaeologists
The first kind of scientist deduces from the remains of Ice Age ancestors what has influenced our current nature and state of being. The second scientist's source of information is artefacts belonging to a recent age.
This information helps us rule out options A, C and D.
This is because in option A and D, the second scientist is said to be a 'historian', would be incorrect since they do not focus only on the recent age.
Similarly, in option C, 'palaeontologists' is the incorrect answer since they consider evidence from pre-historic times. .
Option B is the answer since a 'sociobiologist' examines the nature of human beings, and therefore an 'evolutionary sociobiologist' would be interested in finding out how we evolved to become what we are from our ice age ancestors, and 'archeologist' would be those who focus on artefacts.
Hence, the correct answer is option B.