Answer:
As you used two diferent instruments, one is more sensitive than the other.
Explanation:
The sensitivity of an instrument is the minimum amount of magnitude that can be differentiate a measurement system.
In method A, you got 27 cm, so if in method B, you got 27.00, method B is more sensitive. It's like saying that one system measures more than the other
The correct answer is: [C]: " mg " {"milligrams"} .
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Solids are packed together closely, liquids are farther apart but still relatively close, and gases are very far apart with lots of space.