Step 1: Understanding the Concept:
The functions of Panchayats are listed in the 11th Schedule, and the functions of Municipalities are listed in the 12th Schedule.
Step 2: Detailed Explanation:
- (A), (B), and (C) are listed among the 29 subjects in the Eleventh Schedule (Panchayats).
- "Regulation of slaughter houses and tanneries" is specifically listed as Item 15 in the Twelfth Schedule, which applies to Municipalities (urban local bodies), not rural Panchayats.
Step 3: Final Answer:
Regulation of slaughter homes and tanneries is a municipal responsibility, not a panchayat one.