Option 1 -> Incorrectly matches study of stars/planets with Immunology instead of Astrology.
Option 2 -> Incorrectly matches study of protection against diseases with Hematology and study of blood with Palaeontology.
Option 3 -> Correctly matches: (A) Astrology - stars/planets, (B) Immunology - disease protection, (C) Hematology - blood, (D) Palaeontology - fossils.
Option 4 -> Incorrectly matches study of stars/planets with Palaeontology and multiple other wrong pairings.
Hence, Option 3: (A)-(II), (B)-(I), (C)-(IV), (D)-(III) -> Astrology studies celestial movements, Immunology deals with immune system and disease protection, Hematology is the study of blood and blood disorders, and Palaeontology examines fossils and ancient life forms. -> correct