Hartz Seed Co. is a supplier of soybeans. Colman contracted with Hartz for the delivery of one ton of soy-bean seeds, for delivery at Colman's plant. After delivery, Colman began the process of inspecting the soy-bean seeds for quality. The inspection testing procedure is involved, and usually takes several weeks to complete because it involves growing at least some of the seeds. After one month, Colman noticed several defects in the seedlings that were growing. Colman immediately notified Hartz of the defects and rejected the entire lot. Hartz comes to you for advice concerning a possible action for breach against Colman. Specifically, Hartz asks you whether Colman has accepted the seeds, or properly rejected the seeds. How do you advise Hartz? Explain your answer, including the applicable UCC sections.