The nervous system collects information from inside and outside the body. it is triggered respond to _ , which are events or conditions that cause a living thing to react ..answer

The  nervous  system  collect  information  from  inside and  outside  the   body. It  triggered  to  respond  to  stimuli  which  are  event  or condition  that  cause living  thing  to  react.Stimuli   can  be  external  or internal  where  sense organs   such as ear and  skin are  sensitive  external  stimuli  such  as  sound and touch  respectively.

The correct answer is a. we know this because n (hap) + n (hap) = 2n (dip).

Could you attach an image of the table ?