You are assessing a patient's circulatory status. The patient has a weak carotid pulse of 120 per minute and you cannot palpate either radial pulse. Based on these findings, you: Select one: O a. a. could say that the patient's systolic B/P is 0 mm Hg b. could say that the patient's systolic B/P is estimated to be at least 90 mm Hg O c. could say that the patient's diastolic B/P is estimated to be at least 60 mm Hg O d. could say that the patient's systolic B/P is estimated to be at least 60 mm Hg​