Most tubenoses, like albatross, shearwaters and petrels are excellent
fliers and eat by
A) grazing seaweed from the coast
B) killing other seabirds
C) catching fish at the sea surface
D) diving deep and swimming after prey

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

The answer is b, as with an inference you make a statement with no evidence

Sorry  i don't understand can you rephrase that