In What Way Are Kaplan's and Masters and Johnson's Models

In what way are Kaplan's and Masters and Johnson's models of sexual response different?

A) Kaplan's model is much more focused on the physiological aspects of sexual response.
B) Masters and Johnson's model is the only one to include an orgasm phase.
C) Kaplan's model is the only one to include a desire phase.
D) Kaplan's model is the only one to include a resolution phase.