The correct options are
A Rahul lives in Uttar Pradesh and speaks Tamil.
B Nisha lives in a hilly area in North-Eastern India, while Vivek lives near the sea in Southern India.
C Rohit and Amit can speak to each other in three different languages.
D Mohan loves eating Biryani and Ahmed loves eating Dosa.
A diverse society has people that have several differences among them. Differences can be in the realm of religious, cultural, linguistic and regional aspects.