Technician a Says Horizontial Adjustment of an Oscilloscope Affects the Time-Per-Division

Multiple Choice

Technician A says horizontial adjustment of an oscilloscope affects the time-per-division values. Technician B says changing the vertical adjustment of an oscilloscope affects the volts-per-division values. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B