Neither of these would do, unless he wants to ask his friends if they want to do running with him, or do some sort of physical activity.
Answer: The would most likely shut down some factories that aren't usefull to them
Explanation:
Silent mutation are cause by a point mutation and have no effect of the function because they code for the same amino acid
mutations is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke (almost like cancer)
It depends on the situation
