Sandra Has a Promising Career, Dates Interesting Men, and She

Sandra has a promising career, dates interesting men, and she is quite content to remain single and child-free. Her family strongly supports her choices and celebrates her success as a professional. Her sister, who was married briefly and then experienced an unpleasant divorce, is open about her disdain for long-term commitment. We can make an effort to understand Sandra's behaviour using different levels of analysis. In this case, the influence of Sandra's family on her decision to stay single and child-free fits with the
________ level of analysis.

A) cognitive
B) biological
C) environmental
D) psychological