When a Patient Complains of Tachypnea,the Nurse Explains That the Breathing

When a patient complains of tachypnea,the nurse explains that the breathing pattern has altered because the: (Select all that apply.)

A) Increased pH levels stimulate chemoreceptors in the aorta and carotid arteries, which stimulates the phrenic nerve.
B) Decreased oxygen level signals the phrenic nerve to alter the respiration rate.
C) Muscles of respiration respond to the stimulus.
D) Brain has become hypoxic and causes an alteration in the respiration rate.
E) Deflated lung tissue results in an altered respiration rate.