For a solid A(s) following data is given

$\begin{array}{l}{\mathrm{\Delta H}}_{\text{fusion }}^{\circ }=20 \mathrm{kJ} {\mathrm{mole}}^{-1}\\ {\mathrm{\Delta S}}_{\text{fusion }}^{\circ }=50 \mathrm{J} {\mathrm{mole}}^{-1}{\mathrm{K}}^{-1}\end{array}$

Identify correct option(s) at 1 bar.

Freezing is reversible at 450 K

Freezing is spontaneous at 350 K

 Melting is spontaneous at 500 K

Melting is non-spontaneous at 400 K