Which when measuring the volume of a liquid in a graduating cylinder, you at the top of the meniscus the average between the volume at the top of and the bottom of the meniscus from the bottom of the meniscus from the exact top of the liquid

Option C, from the bottom of the meniscus

Explanation:

The meniscus in a graduated cylinder represents the volume of the liquid being measured

The prime aim is to take the reading at the center of the meniscus whether it takes concave shape or convex shape

In case of water, the reading is taken from the bottom of the meniscus and in case of mercury the reading is taken from the top of the meniscus.

However, except mercury in most of the cases the reading is taken from the bottom of the meniscus. Hence, option C is correct

what's the rest of the question

i think the answer is b.