Task: Question Answering
Input (English): Question: A certain list of 301 test scores has an arithmetic mean of 75 and a standard deviation of d, where d is positive. Which of the following two test scores, when added to the list, must result in a list of 302 test scores with a standard deviation less than d?

 Option A:  75 and 80

 Option B:  75 and 75

 Option C:  70 and 75

 Option D:  74 and 75

 Option E:  70 and 80
Output (English): Option B