Merging is when two lanes of traffic join into a single lane. The driver is expected to adjust their speed to match the speed of the vehicles on the road they are trying to enter, while looking for an adequate space to merge into traffic.
Because you have to adjust your speed and look for an opening, you must yield to traffic regardless of the speed of other vehicles. Therefore, than answer is Choice A.
Children will associate there unacceptable behaviour with getting spanked, and the purpose is to dissuade them from partaking in that behaviour in the future.
