I would go with b? That just in my opinion tho
Answer:
B. Burns cleaner than coal
Ribosomes synthesize proteins
Insects (mosquitoes, lice, fleas, bed bugs) and ticks are able to transmit a number of diseases caused by infectious agents: viruses (chikungunya virus, yellow fever, dengue fever, etc.), bacteria (Lyme disease, plague, etc.), parasites (malaria, sleeping sickness, leishmaniasis, filariasis, etc.)
The answer to your question is Insomnia