Answer
(D). vectors is a correct answer
Step-by-step explanation:
- A vector transferred the infected agent from the animals which are infected to the human, which results in vector-borne disease.
- Mosquitoes are one of the examples of the biological vector which causes vector-borne diseases by carrying an infectious agent they transfer to the human through its bite.
- Disease which is transmitted by the mosquitoes is dengue, yellow fever, malaria, etc.
- Thus this how mosquitoes can transmit viruses from one organisum to another by acting as biological vector which carry infectious agent.