If the cell reaction is spontaneous the 

• A

  ${\mathrm{E}}_{\mathrm{cell}}^{\circ }\text{ is negative }$

• B

  ${\mathrm{E}}_{\mathrm{cell}}^{\circ }\text{ is positive }$

• C

  $\mathrm{\Delta G}\text{ is negative }$

• D

  $\mathrm{\Delta G}\text{ is positive }$