The answer is source B because it has a listed author who is an expert and it is the governments organization website which are more reliable that a .com website. Source A does not even list the author so you do not know who wrote it could be anyone.
The study enables scientists to understand the importance of the roles that genes and environment play in intelligence.
<h3>What is inteligience study?</h3>
The term intelligience study has to do with the asessment of individuals to effectively complete a given task in short period of time.
Twins share the same environment hence, scientists can be able to decode the importance of the roles that genes and environment play in intelligence.
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B) protein
C) fat
F) carbohydrates
Yes they are and we need it on our body
