When representing a reversible reaction on a graph, which of the following correctly demonstrates the relationship between the reaction quotient Qp and the equilibrium constant Kp$?$ a$)$ Qp $>$ Kp$,$ reaction proceeds to the leftb$)$ Qp $<$ Kp$,$ reaction proceeds to the rightc$)$ Qp $=$ Kp$,$ reaction is at equilibriumd$)$ Qp $=2$Kp$,$ reaction is not at equilibrium