You have just been given a requirement to purchase $22,000 worth of commercial supplies for one of the units you support. WHich one of the following is true concerning the method of publication required and the minimum solicitation response time. A. Synopsis not required, 45-day minimum solicitation response time. B. Synopsis not required, 30-day minimum solicitation response time. C. Public posting require, 30 days minimum solicitation response time. D. Public posting required, no minimum solicitation response time for commercial items