Explanation:

- Option 1: India

- India is the only country where both wild tigers and wild lions exist naturally. Tigers are found across various reserves. The Asiatic lion is found only in the Gir Forest, Gujarat.

- Option 2: South Africa

- South Africa does not have wild tigers. It only has lions. Any tigers seen are in zoos or private reserves, not in the wild.

- Option 3: Mexico

- Mexico has neither native wild tigers nor wild lions. Any seen there are in captivity.

- Option 4: Tanzania

- Tanzania is famous for its lions, especially in the Serengeti, but it does not have wild tigers.