A 40 Year Old Woman Consulted Her GP Because She

A 40 year old woman consulted her GP because she felt a lump in her breast.The GP found the lump and felt that,since the mass seemed to change in size with her menstrual periods,it was likely a benign process.Because she had a sister with breast cancer,and to avoid excessive worry on the part of the patient,a biopsy was performed.A representative section is shown in the accompanying photomicrograph.Which one of the following is the best diagnosis?

A) Ductal carcinoma in situ
B) Fibroadenoma
C) Fibrocystic change
D) Gynaecomastia
E) Infiltrating ductal carcinoma
F) Infiltrating lobular carcinoma
G) Lobular carcinoma in situ