Which of the following is syntactically correct? To win the award best she did., She did her best to win the award., To win the award she did her best., None of these

To win the award best she did.

She did her best to win the award.

To win the award she did her best.

None of these

She did her best to win the award.

This sentence follows proper word order: Subject (She) + Verb (did) + Object/Complement (her best).

The infinitive phrase "to win the award" correctly explains the purpose of her action.