[单选题]
It takes 50 J of energy to move 10 C of chargtl ya9 ur(p9i,e fni / scu vj ;;i:/y3bo+ipk;htrom point A to point B. What is the potential difference between points A a;yn/ :skuov hij c;+i3;b ipt/nd B?
A. $500 \; V$
B. $50 \; V$
C. $5.0 \; V$
D. $0.50 \; V$
