A number of studies cited in your text lead to the conclusion ...

[cherise1989]

A number of studies cited in your text lead to the conclusion that the normal intellectual and social development of children:
 
  a. depends largely on heredity.
  b. requires nurturance.
  c. is retarded by too much attention.
  d. is accelerated by a large number of siblings.

Question 2

Harlow found that infant monkeys raised in total isolation:
 
  a. could mate and care for their babies normally as adults.
  b. formed strong attachments to their mechanical mothers.
  c. developed normally except for a tendency to hide in corners when placed with other monkeys.
  d. could recover from any ill effects if given a second chance to be socialized with younger monkeys.

[Juro]

Answer to Question 1

b

Answer to Question 2

d

[cherise1989]

TYSM

[cici]

Excellent