Which of the following sentences correctly uses pronunciation To show a quick change between ideas

To answer your question, the correct sentence would be:

"Although she was tired, she still managed to finish her work on time."

This sentence uses pronunciation to show a quick change between ideas by contrasting two different states of being - being tired and still finishing the work on time. The word "although" indicates the contrasting idea and helps to create a shift in the sentence.
To identify this correctly, you need to understand the meaning and usage of "although" as a conjunction to indicate a contrast or opposition.