250 w 12 km/h
4. convert yoor answer from 3 to meters per second.

3.33 m/s

Explanation:

Assuming the questions is to convert  12 km/h to meter per second (m/s), let's begin:

In order to make the conversion, we have to know the following:

And:

Keeping this in mind, we can make the conversion:

Then:

i wanna say it’s between b and d, leaning more towards b.

because if the tool that you are using is not balanced it there would be false mass.