Well, in this sentence the subject is 'he', I think you gave us the wrong options here. :S
Answer:
I would say A.
Explanation:
When a baby is born they do not know or remeber anything. They don't start to have a <u>developing</u> mind until they are 2 to 3 years old.
<h2>Video Games can affect children and teenagers by staying inside</h2><h2>Unhealthy/unheiginic </h2><h2>Affect health</h2><h2>Too much screen time</h2><h2>Not socialising as much</h2><h2>No face to face conversations.</h2>