<span>The correct answer is Pheromone. This isn't only common to moths, but mostly to all animals. Animals release pheromones to attract each other and procreate to ensure that the species continues existing. Sugars and hormones are completely different things and are unrelated to sexual attraction in animals.</span>
Viruses need to be inside a living thing (of course the living thing has to have the right temperature which most living things do) . When they're inside a living thing they start injecting the host's cells with its DNA in order to make more copies of itself which allows the virus to spread. So basically viruses need to be inside something living.
Glucose molecules. Then glycolysis happens.
C) As the trait will then pass to others without it and through natural selection will become abundant