The answer i got was B.:Extrinsic
I hope this will help u :D
<span>The increase in IQ scores over time suggests environmental factors have a strong influence on intelligence.
</span>Our intelligence depends on predisposition and the environment.
Our genetic <span>predisposed is not going to change over time but the type of life
we lead also affects intelligence.</span>
The correct answer would be Self-fulfillment.
I hope that this helps you !