I believe the correct answer is B. Spread by contact.
Answer:
Embryo
Explanation:
In the first 2-8 weeks of life after fertilization, the life in the womb is referred to as an Embryo. I ope this helps :)
Chest discomfort that feels like pressure , fullness, or a squeezing pain. unexplained shortness of breathing with and without chest comforts.
C. so agencies can make a greater profit