Answer:
Most likely B, mild allergy
Explanation:
Dyspnea is described as shortness of breath so if she is denying difficult breathing then that's not it. It is also JUST shortness of breath, there's no itchy or watery eyes from dyspnea. Shock and anaphylaxis are both extreme cases. If there were other severe symptoms than these could be possibilities. But mild allergies would explain the itchyness, and watery eyes, along with lowering blood pressure.