Match the entries of column I with appropriate entires of column II Each entry in column I may have one or more than one corret option from column II if the correct matches are A-p,s, B-r,C-p,q,D-s then the correctly bubbled `4xx4` matrix should be as follows:
`{:(,"column I" ,, "column II "),((A) ,"Electrode on which reduction occurs " , (p), "Anode"),((B), "Electrode on which oxidation occurs", (q), "Cathode"),((C ) ,"Electrode connected to positive pole of the battery" , (r),"Negative pole"),((D),"Electrode connected to negative pole of the battery" , (s),"positive pole" ):}`

Answer

A-q,s;B-p,r;C-p;D-q