Answer:
kilogramo
Explanation:
kilogramo makes the most sense because it's asking how many milligrams in (blank) I suppose kilograms because it's the next measurement.
Also, kilómetro is kilometer. you can't find milligrams in a kilometer. You can't measure milligrams in ounces or a spoon either
Because they- Could?
I don't really know man
the corect answer is A
