Which of these is true regarding allergies?
a. Systemic lupus erythematous is one of the most common allergic diseases.
b. The first time a person is exposed to an allergen, there is a signal sent to the cells to produce or release a huge amount of powerful chemicals like histamine that cause inflammation and profound allergy symptoms.
c. Immunoglobulin E is not involved in the allergic response.
d. In an allergic reaction, the body mistakenly responds as if it were defending itself against an invading organism.
e. Allergies are rare and not considered a top health problem among college students.