Which of the following statements supports the role of environment in the development of a child? (CTET-II Level-2013)

There has been a steady increase in the average performance of learners in IQ tests over the past few decades.

Physically healthy children are often found to be morally sound.

Some learners process information quickly while others in the same class are unable to do so.

Identical twins raised in different households have an IQ as high as 0.75.

Which of the following statements supports the role of environment in

1.	Which of the following statements supports the role of environment in the development of a child? (CTET-II Level-2013)
A.	Physically healthy children are often found to be morally sound.
B.	Some learners process information quickly while others in the same class are unable to do so.
C.	There has been a steady increase in the average performance of learners in IQ tests over the past few decades.
D.	Identical twins raised in different households have an IQ as high as 0.75.
Answer» C. There has been a steady increase in the average performance of learners in IQ tests over the past few decades.