Select the reagent(s) required for the following transformation.
Nc1ccccc1
Ic1ccccc1
a) [tex]\mathrm{Nal}[/tex]
b) (1) [tex]\mathrm{NaNO}_2, \mathrm{HCl}[/tex]; (2) [tex]\mathrm{Nal}[/tex]
c) (1) [tex]\mathrm{NaNO}_2, \mathrm{HCl}[/tex]; (2) I [tex]\mathrm{I}_2[/tex]
d) [tex]\mathrm{I}_2[/tex]



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