Match the following pairs of constitutional amendments and its subjects:
Constitutional Amendment — Subject
1. The 101st Amendment — A. Reservation of seats for SCs and STs in legislatures
2. The 102nd Amendment — B. Goods and Services Tax.
3. The 103rd Amendment — C. National Commission for Backward Classes
4. The 104th Amendment — D. Reservation for Economically Weaker Sections
Select the correct answer using the code given below: