[单选题]
A device that produces electricity bypsyp7hko9) be:j(j 6a transforming chemical energz t6 faw h5bh;/zag31s goxd55ol nq(4de9;yfy into electrical enyw n61dh3x5e(gg4s9z5o;b fa/z 5dlqhatof ;ergy is called a
A. generator.
B. transformer.
C. battery.
D. none of the given answers
