“连珠斑”的含义是

A.乌梢蛇的背部有黑色斑纹，习称“连珠斑”

B.蕲蛇的背部有黑色斑纹，习称“连珠斑”

C.金钱白花蛇腹部有黑色斑纹，习称“连珠斑”

D.蕲蛇的腹部有类圆形黑斑，习称“连珠斑”

E.金钱白花蛇背部有黑色斑纹，习称“连珠斑”