18. Based on the affixes, which of the following words could be defined as 'the study of humans'?

Answer: C

Explanation:

Anthropology is defined as 'the study of humans.'

Anthropology encompasses the comprehensive study of human societies, cultures, and their development, making it the correct choice for the definition provided.

A) anthropomorphism

Anthropomorphism refers to attributing human characteristics or behaviors to non-human entities, such as animals or inanimate objects. While it involves a study of perception regarding humans, it does not pertain to the systematic study of humans themselves, thus making it incorrect.

B) biology

Biology is the scientific study of life and living organisms, encompassing various fields including zoology and botany. Although it includes the study of humans as organisms, it does not specifically focus on human societies or cultures, which is central to anthropology.

C) anthropology

Anthropology is explicitly defined as 'the study of humans,' examining their behavior, culture, and social structures. This makes it the most accurate option in relation to the question posed.

D) philanthropy

Philanthropy involves the desire to promote the welfare of others, typically through charitable donations or actions. While it may involve human interactions and social issues, it does not constitute a study of humans, making it incorrect in this context.

Conclusion

Anthropology is definitively the correct answer as it directly translates to 'the study of humans,' focusing on their cultures and societies. Other options, while related to human interactions or biology, do not address the specific study of humans in the same comprehensive manner as anthropology does.