Can you guys answer this ASAP, thanks will give brainliest

B. Genetic engineering

Explanation:

It's not natural selection because the mosquitoes aren't naturally adapting. It isn't cloning studies because they aren't being cloned, and it isn't random mutations because the scientists are deliberately changing the mosquito's DNA. It's genetic engineering because it is the deliberate change of the characteristics of an organism by changing its genetic material.

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.