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Option 1: Two minutes - This option states that for each degree of longitude, the local time of any place varies by two minutes from Greenwich time. However, this is incorrect as the correct answer is option 2.
Option 2: Four minutes - This option states that for each degree of longitude, the local time of any place varies by four minutes from Greenwich time. This is the correct answer. Since the Earth rotates 360 degrees in 24 hours, each degree of longitude represents 4 minutes of time difference.
Option 3: Six minutes - This option states that for each degree of longitude, the local time of any place varies by six minutes from Greenwich time. This is incorrect, as the correct answer is option 2.
Option 4: Eight minutes - This option states that for each degree of longitude, the local time of any place varies by eight minutes from Greenwich time. This is incorrect, as the correct answer is option 2.
In conclusion, for each degree of longitude, the local time of any place varies by four minutes from Greenwich time.