Somatic reflexes:

*no option is correct.

*are slower compared to visceral reflexes.
perform homeostasis.

*carry information through the ans division.

*are mediated by the spinal cord (they do not require the brain).

The answer would be sand and gravel

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it

What orders do you have in your chart