Answer:
The answer would be the first one
Explanation:
C. Would be the right answer!!!!!!
Yes, as scientists could figure out what might have changed in the variables she used. Brainliest me and I can give you the whole system.
<span>The study of the interactions of genes with the environment is called Epigenetic, is how genes are expressed in relation to environmental factors and how diseases and other conditions develop. It is the study of the impact of environment and lifestyle on the behavior of genes and the way it responds to external factors.</span>