Explanation:

- The Competition Commission of India (CCI) is a regulatory authority that approves significant business acquisitions.

- Zomato, a well-known online food delivery service, sought approval to acquire a stake in Grofers India, an online grocery platform.

- Grofers India, along with its wholesale entity, Hands on Trades, was part of this deal.

- This acquisition was significant for Zomato, enhancing its reach in the grocery delivery market.

- The CCI approved Zomato's request to acquire a certain percentage of stake.

- Option 1, 6.1%: This percentage is not the correct stake approved.

- Option 2, 7.9%: This is not the approved stake percentage.

- Option 3, 8.4%: Not the percentage approved by CCI.

- Option 4, 9.3%: This is indeed the correct stake percentage approved.

- Option 5, 10.5%: This option is incorrect regarding CCI's approval.