Which of the following reagents can convert benzenediazonium chloride into benzene?

Hypophosphorous acid is used.Benzenediazonium chloride into benzene by treatment with Hypophosphorous acid.
The diazonium group is replaced with -H. This is reduction of benzene diazonium chloride.

${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{N}}_2\mathrm{Cl}\underset{{\mathrm{orH}}_3{\mathrm{PO}}_2}{\stackrel{{\mathrm{SnO}}_2}{⟶}}{\mathrm{C}}_6{\mathrm{H}}_6+{\mathrm{N}}_2+\mathrm{HCl}$.