One Day After Discharge,the Postpartum Patient Calls the Clinic Complaining

One day after discharge,the postpartum patient calls the clinic complaining of a reddened area on her lower leg,temperature elevation of 37 ° C (99.8° F) ,rust-colored lochia,and sore breasts.From these symptoms,the nurse suspects:

A) phlebitis.
B) puerperal infection.
C) late postpartum hemorrhage.
D) mastitis.