Lamar was taking a nap. he was startled by a noise in his kitchen, woke up, and stood up quickly. he then had a dizzy spell and sat down quickly. what best describes what happened to lamar? a. sleep causes blood pressure to rise, and when he stood up quickly he was hypertensive. b. sleep causes blood pressure to drop, and when he stood up quickly he was hypotensive. c. sleep causes blood pressure to rise, and when he stood up quickly he was hypotensive. d. sleep causes blood pressure to drop, and when he stood up quickly he was hypertensive.