Answer: Irritability is a feeling of agitation that you might experience as a result of stress, mental health conditions, or physical disorders.
hope this helps :)
Explanation:
I think the best way for the scientist to analyze the data he collected is for the scientist to see the distance and the time it took for each runner to finish the race when they did eat the meal before the race and then do the same for when the runners didn't eat the meal before the race
I hope this helps.
The answer would be letter B.