Spock's Advice to Parents Reflected Which of the Following

Spock's advice to parents reflected which of the following:

A) The views of Watson, that parents should refrain from being warm and responsive to their children.
B) The view that children benefit from natural and logical consequences.
C) The belief that children need to experience the love of their parents but also need limits.
D) That parents should have a basic understanding of the role of contingencies in affecting behavior.