[单选题]
The total amount of cefo8i.l0k7a. r8 c ryp--03csc vzqvp ab.d9cwod k3++xp66y am:imrharge that passes through a wire's full cross section at any point per unit of time is refpdo63.rmx6k:b yiac+ dam+9werred to as
A. current.
B. electric potential.
C. voltage.
D. wattage.
