Is it important to do work that one finds fulfilling or work that pays well

Mabey a person hope this hels

Maybe because he failed the classes or is very accelerated.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.