13. What is the purpose of writing the following algorithm: I $:=$ N1 IF N2 $ $ I THEN BEGIN I $:=$ N2 END IF N3 $ $ I THEN BEGIN I $:=$ N3 END Z $:=$ T (a.). To assign the lowest value to $2$ (b.) To assign the highest value to $\mathrm{Z}$ The purpose of the algorithm is: CS.JG. 026