The right answer is smelly garbage.
Infestation is the penetration into the body of a parasite whose nature is not microbial.
smelly garbage is not synonymous of infestation, because the olfactory system only detected smelly metabolites of these microorganisms. This does not necessarily mean that the microorganism has managed to penetrate the body.
By cons other proposals are signs and tools for infestation (torn packaging with food leaking out, dead insect bodysuits, feathers, and fur).
The
correct answer is a: genetically similar individuals who have been raised in
similar environments.
<span>For
example, monozygotic twins, who share 100% of their DNA that grew up in the
same home have the highest correlation of their IQs (correlation is 0.86). </span>