Harlow's Experimental Work with Monkeys Helped Support the View That

Harlow's experimental work with monkeys helped support the view that:

A) social interactions play less of a role in development than health and nutrition.
B) children's healthy emotional development is rooted in early social interactions with adults.
C) emotional development can be compromised, but only if early isolation is total.
D) early social interaction is crucial, but dependent on the quality of the interaction.