Understanding the Terms
Parasitic castration (A) is caused by
Sacculina, a parasitic barnacle that affects crabs → (II).
Neoplasia (B) refers to abnormal and uncontrolled tissue growth, often triggered by
some viruses → (IV).
Hyperplasia (C) is an increase in the number of cells, which occurs in infections by
Fasciola hepatica → (I).
Hypertrophy (D) is the enlargement of cells, which can be caused by
Plasmodium infections → (V).
Step 2: Correct Pairing
Thus, the correct match is:
\[
\textbf{A-II, B-IV, C-I, D-V.}
\]