Question : Select the most appropriate option to fill in the blank.
Our breathing rate can change almost instantaneously in response to stress or ______.
Option 1: arousal
Option 2: fund
Option 3: difference
Option 4: attention
Correct Answer: arousal
Solution : The correct choice is the first option.
Explanation : In the context of the sentence, the word "arousal" fits best. The sentence discusses changes in breathing rate in response to stress or arousal. Arousal refers to the state of being excited, stimulated, or activated, and it aligns with the idea that breathing rate can change in reaction to such states.
So, the correct sentence would be: Our breathing rate can change almost instantaneously in response to stress or arousal .
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