Bonnie really cares for her husband, bill. whenever they have intercourse, it is painful because of insufficient lubrication. no matter what they try, an artificial lubricant is necessary. kaplan would describe bonnie's problem as one of?

Kaplan would describe Bonnie's problem as one of arousal.

Explanation:

The sexual arousal phase is one of the 4th phases in the sexual desire cycle phases. This phase has two types of arousal, the subjective and the physical one.  As Bonnie says that she cares for her husband it might not be a problem of subjective arousal, it is more related to a problem of physical arousal because her body is not producing enough lubrication to have intercourse.