Explanation:

1. Rama and Mohan have two children namely Smita and Devika
2. Devika is married to a male, say X, who is the son of Madhu and Jeevan.
3. Madhu and Jevaan have two more children (apart from X) namely Krishna and Aman. Thus Madhu and Jeevan have three children namely X, Krishna and Aman. Thus X, Krishna and Aman and siblings.
4. Krishna is married to Sunil and they have two children namely Ankur and Anuj.
5. Aman has one child called Romila.

        6.Thus Ankur, Anuj and Romila are the grandchildren of Madhu and Jeevan.

        Hence, option 1 is the correct answer.