Pitt sued Dill for damages for back injuries received in a car wreck. Dill disputed the damages and sought to prove that Pitt's disability, if any, resulted from a childhood horseback riding accident. Pitt admitted the childhood accident, but contended it had no lasting effect. Pitt calls Dr. Webb, an orthopedist who had never examined Pitt, and poses to Webb a hypothetical question as to the cause of the disability that omits any reference to the horseback riding accident. The question was not provided to opposing counsel before trial. The best ground for objecting to this question would be that 
Webb lacked firsthand knowledge concerning Pitt's condition. the hypothetical question omitted a clearly significant fact. hypothetical questions are no longer permitted. sufficient notice of the hypothetical question was not given to opposing counsel before trial.