For the cell, Mg | Mg2+ || Cu2+ | Cu

a.  Mg acts as cathode

b.  Cu acts as cathode

c.  The cell reaction is   \(Mg + Cu^{2+} \rightarrow Mg^{2+} + Cu\)

d.  Cu is the oxidising agent

The correct choice among the given is: 

1. (a, b) 2. (b, c)
3. (c, d) 4. (a, d)