This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Microbiology
The rationale for giving prophylactic antibiotics at the beginning of a surgical procedure can be thought of as an attempt to prevent the bacteria from entering which of the following growth phases? 
Select and explain. 
A. Death phase, B. Lag phase, C. Log phase, D. Phase of decline
C: Log phase
Answer: C: Log phase 
Explanation: Ans. C. Log phase1. Max. size in lag phase2. Max. active, dividing, smaller cells with uniform staining in log phase3. Speculation, exotoxin production & antibiotic production occurs in stationary phase4. Involutional forms in phase of decline.