This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Acute mastitis commonly occurs during- 
Select and explain. 
A. Pregnancy, B. Puberty, C. Lactation, D. Infancy
C: Lactation
Answer: C: Lactation 
Explanation: • Involvement of the interlobular connective tissue of the breast by an infectious process.
• The patient develops nipple fissuring and milk stasis, which initiate a retrograde bacterial infection.
• Emptying of the breast using breast suction pumps shortens the duration of symptoms and reduces the incidence of recurrences.
• The addition of antibiotic therapy results in a satisfactory outcome in >95% of cases.