The correct option is C Sonneratia
Vivivpary is a condition where seeds germinate before they detach from the parent. Such condition is observed in mangroves. They grows in saline coastal region. This region is very saline. So, mangroves have evolved a special mechanism to help their offspring survive. They show vivipary and a mature propagule is then released into water which can synthesize their own food by photosynthesis.
Mango is an angiospermic plant and does not show vivipary.
Sonneratia is a mangrove type of plant which is found along the saline coastal environment. It shows vivipary.
Therefore, the correct answer is option C.