Explanation:

Here’s a brief explanation of each option:

- Option 1: Bharti Airtel

- Bharti Airtel is a leading telecommunications company in India, and actively participated in the 5G spectrum auction.

- Option 2: Vodafone Idea

- Vodafone Idea has been struggling with financial issues, which impacted its bidding capacity during the auction.

- Option 3: Adani Data Networks

- Adani entered the auction with interest but was not the highest bidder.

- Option 4: Reliance Jio

- Reliance Jio emerged as the highest bidder in the 5G spectrum auction. They have invested heavily in acquiring the spectrum to further enhance their telecom services.

- Option 5: BSNL

- BSNL is a government-owned telecom operator, generally less aggressive in spectrum auctions.