Please help me will mark as b can you please

Technician a says that the sine with dwell (swd) test is used to determine if an electronic stability control system functions normally. technician b says that the esc lamp, called a telltale light, is required to remain on for two minutes. who is correct?

What characteristics did the kiowa share with the other plains people? a) they migrated from the same places b) they were nomadic hunters c) they used the horse extensively d) they spoke the common language! and you

Look at the graph. where p is price and q is quantity, what might cause a move from b to a?