Answer:
A and D
Step-by-step explanation:
A vector magnitude has a magnitude and a direction Then 15 km are a magnitude that could have a direction for example 15 km in north direction.
The same happends with 30 m/s its a magnitude that could have a direction.
In the case of the option B 25 mililiters is a scalar magnitude because is a volumen then we can not define a direction, and the same for the option C 15 hours.