The Reserve Bank of India's pilot project for a Central Bank Digital Currency (CBDC) is expected to expand significantly by 2026. The project is being tested in two distinct forms. What are these two versions?

1. ACBDC-G for government expenditure and CBDC-C for corporate transactions.
2. BCBDC-I for international remittances and CBDC-D for domestic payments.
3. CCBDC-R for retail and CBDC-W for wholesale transactions.
4. DCBDC-S for stock market trading and CBDC-B for bond markets.