(A) Biology
(B) Philosophy
(C) Theology
(D) None of these
🧠 Explanation:
Biology is the scientific study of life and living organisms, including their structure, function, growth, evolution, and interactions with the environment. The term comes from the Greek words “bios” (life) and “logos” (study). “Called” is a past participle here, indicating the name assigned to this field of study. Alternatives like “life science” can also be used, but “biology” is the standard term in scientific contexts. Understanding biology helps explain natural phenomena, health, and ecosystems. It encompasses various subfields like botany, zoology, genetics, and microbiology, making it a foundational science for both academic research and practical applications in everyday life.