What is the shorthand notation (i. e., line notation) that best represents a complete electrochemical cell for the following galvanic cell reaction?
sn^2+ (aq) + f2 (g) → sn^3+ (aq) + 2f^− (aq)
o pt(s) | sn^2+ (aq), sn^3+ (aq) || f2 (g) f^-(aq)| c(s)
o f2(g)|f^- (aq) || sn^2+(aq) | sn^3+ (aq)
o sn(s) | sn^2+(aq) || sn^4+ (aq) f2 (g)|f^- (aq)| c(s)
o sn^2+ (aq) | sn^3+ (aq) || f2 (g)|f^- (aq)
o pt(s) | sn^4+ (aq), sn2^+ (aq), f2 (g) || f^- (aq) | c(s)