Which option is correct here?

You're right that RA-GZRS provides high availability and read access from the secondary region. However, write access is only available in the primary region, not across multiple regions. Since the question specifically asked about both read and write access across multiple regions, RA-GZRS wouldn’t fully meet that requirement.

Hi Archishman Chakraborti,
Appreciate your input and the valid observation. You’re right to point out that RA-GZRS doesn’t support write access across regions. My initial response was based on the assumption that high availability and read access were the primary requirements. That said, considering the specific mention of write access in the scenario, we'll follow up internally for further clarification and ensure any discrepancies are addressed.