When youngsters do not have good role-model to emulate they start searching for them amongst Sportsmen of Filmstars.

The other options are incorrect.

• To modify is to change or alter something. In this case, the youngsters are not changing the behavior of sportsmen and filmstars.
• To mollify is to make someone less angry or upset. In this case, the youngsters are not trying to make sportsmen and filmstars less angry or upset.
• To inhabit is to live in a place. In this case, the youngsters are not living in the same place as sportsmen and filmstars.