You Tell Your Friend That Ragweed Pollen Gives You Hay

You tell your friend that ragweed pollen gives you hay fever, but now he needs some revision-he can't remember the signs and symptoms of this allergy. You remind him that they include

A) spasms of smooth muscle tissue lining the bronchial tubes and increased mucus production,  caused by inflammatory mediators in the lower respiratory tract.
B) extensive blood vessel dilation and fluid loss from the blood, causing a severe drop in blood pressure that may lead to heart failure and insufficient blood flow to vital organs.
C) teary eyes, a runny nose, and sneezing, caused by fluid leakage from dilated capillaries in the mucous membranes.
D) an itchy swelling generally resembling a mosquito bite, surrounded by redness called a flare.
E) fluid accumulation due to leaky dilated blood vessels, contraction of smooth muscles, itching and pain due to effects on nerve endings, and increased mucus production.