The Client Tells the Nurse That She Does Not Wish

The client tells the nurse that she does not wish to see her mother-in-law during this hospitalisation because she does not like her. When the client's husband and her mother-in-law visit, the client is very cordial and acts happy to see both visitors. The nurse recognises that this client may be using which defence mechanism?

A) Reparation.
B) Rationalisation.
C) Reaction formation.
D) Regression.