8) Use De Morgan's law to select the statement that is equivalent to: "It is not true that the patient has high blood pressure or influenza." a. The patient has high blood pressure or has influenza. b. The patient does not have high blood pressure and does not have influenza. c. The patient does not have high blood pressure or does not have influenza. d. The patient has high blood pressure and has influenza. 9) Select the proposition that is logically equivalent to pq. a. (qp) b. (pq) C. (pq) d. (qp) 10) The table below shows a proof that qpqp. Select the proposition that belongs in the blank square. a. qp b. qp c. (qp) d. qp