D is the rightful answer for this question. Prolonged stress can create and even promote bitter diseases such as cold, flu, and heart disease.
Even though Alexandra could talk with her friends during dance class, she couldn't sing along to the songs. Moderate best describes her heart rate during this activity.
Answer: b. moderate
Autopsies usually test for 3 abnormalities which include: infections, changes in body tissues and organs, and the presence of chemicals such as drugs or poisons.