Answer:
It is probably B. order of importance.
Explanation:
Before she loses the audience's attention, she needs to say the most important information first.
Answer: A. Lydia holds a bachelors degree in biomedical engineering and works for a local pharmaceutical company.
Explanation:
Laughter enhances your intake of oxygen-rich air, stimulates your heart, lungs and muscles, and increases the endorphins that are released by your brain. Activate and relieve your stress response.
I would say using a comma to combine the two sentences.
