Answer:
Remove unnecessary repetition
Step-by-step explanation:
A redundant sentence is a sentence in which a group of words express the same idea expressed by another word, so it is unnecessary. For example: The only one student in the class was Mary. Here, the word one is redundant, because the word only indicates the meaning of one. Therefore, the best strategy to improve this sentence is eliminating the repetition. The only student in the class was Mary.