After reading the given sentence, it can be inferred that the grammatically correct sentence will be read as, ''In yoga class, I stretch my muscles, balance on one foot, and strengthened my core.'' Therefore, the option D holds true.
<h3>What is the significance of complete sentence?</h3>
A complete sentence can be referred to or considered as the sentence in which no grammatical errors are found, and neither does it have any linguistic errors. Tense, parts of speech, and figures of speech are important parts of a complete sentence.
The sentence given above is in the past tense, and the use of parts of speech to complete the sentence will also be in the past tense. As a result, ''strengthened my core'' will be used.
Therefore, the option D holds true and states regarding the significance of a complete sentence.
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