The second phase of the general adaptation syndrome (gas) is characterized by

The second phase of general adaptation syndrome (gas) is characterized by alarm phase, the stage of resistance and the exhaustion stage.  The gas stage gives a description of the both the short and long term emotional and physical effects of stress.  Gas elaborates the relationship between health and stress.

i it is d i hope it

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.