单选题 According to the passage, what is the role of finger spelling in sign language?

A、 It is to represent letters of the alphabet.
B、 Finger spelling serves as a way to differ from spoken language.
C、 Finger spelling means you can spell the word by fingers.
D、 It is a convenient way to communicate with the other peopl

【正确答案】 A

【答案解析】[点拨] 倒数第二段讲到了，手指拼写用于代表字母。故选A。