What does principle of summer raise feed have?（）
选项：

A:It is advisable to eat more products such as spinach, water bamboo shoots and so on;
B:When food is done with gan han, delicate as appropriate, avoid heavy oil thick taste, such as bitter gourd, cucumber;
C:On the diet can eat appropriately the thing of a few clear heat benefit wet, wait like soya bean, green bean;
D:Food should be more xin, warm, less bitter cold, cold drink