- Malaria: Characterized by cycles of fever.
- Filariasis: Causes inflammation of the lower limb.
- Ringworms: Causes blood clots and excess mucus in stools.
- Amoebiasis: Characterized by scaly lesions on nails.
Thus, the correct match is:
(A) - (IV), (B) - (II), (C) - (III), (D) - (I).
Final Answer:
\[
\boxed{\text{The correct match is (A) - (IV), (B) - (II), (C) - (III), (D) - (I).}}
\]