Select the correct answer. Which type of a reaction is best represented by the equation - AB + CD → AD + BC? A. single displacement B. catabolic reaction C. double displacement D. anabolic reaction E. decomposition reaction

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