Answer: D. alarm
Explanation:
General adaptation syndrome (GAS) is the three-stage process which show the physiological changes in the body when body undergoes stress.
Three stages are: 1) Alarm stage 2) resistance, and 3) exhaustion.
Alarm reaction stage is the initial symptoms that body experiences when under stress.
Andres is showing symptoms of Alarm stage, as thi sis the first stage of GAS in which the heart beats faster and blood moves to arms and legs in faster way, in order to fight or flee. If the stress will continue it will move to the second stage that is resistance stage.
Hence, the correct option is D. Alarm