The autonomic nervous system manages our
a. heart rate
b. blood pressure
c. body temperature
d. all of the above

the ANS (automatic nervous system) controls  organs that aren't part of our voluntary control. With this being said, D: all of the above is the answer because ANS  deals with the way the internal organs work. Things that function without thinking about it would fall under ANS. Body functions that fall under ANS are as followed: digestion, sexual arousal, digestion, things that deal with the respiratory system, heart rate, and etcetera.  

The somatic nervous system controls the voluntary motions and deals with the nervous system such as the spinal, cranial, and interneurons (sensory).  

Hopefully this helped and good luck!!!