Answer:
A. The speed of a snail is
Explanation:
An experimental result, in this context, is the raw result (data) from the experiment. It has not undergone any modification, neither is it due to any other calculations. It is simply observed from the experiment. The speed a snail would be an experimental result.
The average speed is a calculation derived from several observations.
A mercury thermometer is an instrument used for measurement and not an experimental result
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