The image A will be the most likely represents a measurement that the scientist made and is denoted as option A due to the presence of the meniscus.
This is referred to a curve which is present in the surface of a molecule such as water when it comes in contact with another material.
This property is as a result of the surface tension which exists between the glass and water thereby making it stick to each other. In diagram A, we can see the presence of the meniscus which is therefore the reason why it was chosen as the most appropriate choice.
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