A. Delicate lungs

B. Congenital deficiency

C. Milk stagnation

D. Dampness of the spleen and stomach

E. Lack of kidney qi

Reference Answer: A

Analysis: Children’s lungs are delicate, susceptible to external evils, lung network loss, unfavorable qi, easy to condense fluid, brewing liquid is phlegm, so that phlegm obstructs the airway, so it can be seen that the cough is aggravated, and there is phlegm in the throat, which is a cold with phlegm. Option A is correctly selected.