How Are Family Influences Thought to Cause Differences in Attachment

How are family influences thought to cause differences in attachment relations?

A) Difficult conditions are likely to lower parental sensitivity, and children may feel insecure when they experience unpredictable caregiving.
B) Parents living in poverty do not generally care about their children.
C) Parents experiencing marital difficulties tend to focus more on their marital partner than their child.
D) A child's temperamental difficulties lead to increased stress for a family.