What is the standard cell notation of a galvanic cell made with zinc (zn) and aluminum (al)? a. zn(s) | zn2+(aq) || al3+(aq) | al(s) b. zn2+(aq) | zn(s) || al(s) | al3+(aq) c. al(s) | al3+(aq) || zn2+(aq) | zn(s) d. al3+(aq) | al(s) || zn(s) | zn2+(aq)