Arrange the following facts related to the correlation of intelligence from the highest to the lowest correlation:

(A) Intelligence of identical twins reared together
(B) Intelligence of fraternal twins reared together
(C) Intelligence of brothers and sisters reared together
(D) Intelligence of identical twins reared part
(E) Intelligence of siblings reared apart

Choose the correct answer from the options given below:

(A), (D), (B), (C), (E)

The correct answer is Option (2) → (A), (D), (B), (C), (E) 

• (A) Identical twins reared together → Highest correlation (≈ 0.90).  Same genes + same environment.

• (D) Identical twins reared apart → High correlation (≈ 0.72).  Same genes, but different environments.

• (B) Fraternal twins reared together → Moderate correlation (≈ 0.60). 

• (C) Siblings reared together → Lower than fraternal twins (≈ 0.50).  

• (E) Siblings reared apart → Lowest correlation (≈ 0.25). 

 "The evidence for hereditary influences on intelligence comes mainly from studies on twins and adopted children. The intelligence of identical twins reared together correlate almost 0.90. Twins separated early in childhood also show considerable similarity in their intellectual, personality and behavioural characteristics. The intelligence of identical twins reared in different environments correlate 0.72, those of fraternal twins reared together correlate almost 0.60, and those of brothers and sisters reared together correlate about 0.50, while siblings reared apart correlate about 0.25."