With no explanation, chose the best option from "A" or "B". "John and Mark are in the car and John is driving as they approach main street which shows a ""no left turn"" sign from the current road they're on." John wants to drive south down main street.

A: John sees a gap in traffic and takes the opportunity to make the left turn anyway onto main street.
B: John continues straight down the road he's on and drives around the block before accessing main street from a different road.
B.