Step 1: Understanding host-parasite relationships.
Parasites require different hosts for their life cycles. These include primary hosts, secondary hosts, and reservoir hosts depending on developmental stages.
Step 2: Plasmodium life cycle.
Plasmodium (malaria parasite) completes sexual reproduction in female Anopheles mosquito and asexual reproduction in humans. Thus mosquito acts as primary host.
Step 3: Role of humans.
In Plasmodium life cycle, humans act as secondary or intermediate hosts where asexual multiplication occurs in liver and RBCs.
Step 4: Other associations.
Female Culex mosquito acts as secondary host for Wuchereria. African antelope acts as reservoir host for Trypanosoma. Monkey can act as reservoir host for Plasmodium.
Step 5: Matching evaluation.
Correct pairing becomes: i-d, ii-c, iii-b, iv-a, v-e based on biological host specificity and parasite life cycles.
Step 6: Final conclusion.
Thus, option (2) is the correct matching combination.