Final answer:
The units of conduction velocity are meters per second or m/s, as velocity is the distance traveled divided by the time taken.
Step-by-step explanation:
The units of conduction velocity are meters per second, or m/s. This unit is derived by dividing a distance quantity by a time quantity, which is the definition of velocity. Other units for velocity, such as kilometers per hour (km/h) or micrometers per nanosecond (μm/ns), can also be used depending on the context; however, in the realm of biology and specifically when measuring nerve conduction, the standard unit is meters per second. Therefore, the correct choice from the provided options would be 4) meters/seconds.