Which of the following statements correctly describes a spontaneous reaction?

A spontaneous reaction has a positive Gibbs free energy change and a K value less than 1.

A spontaneous reaction has a negative Gibbs free energy change and a K value greater than 1.

A spontaneous reaction has a positive Gibbs free energy change and a K value equal to 1.

A spontaneous reaction has a zero Gibbs free energy change and a K value equal to 1.