Mary rates the books she reads on a scale of 0 to 10 stars, where 10 is the highest. The dot plot shows her ratings for the books she has read over the past two months. After the data was recorded, Mary gives her latest book a rating on 1 star. How will this new rating affect the mean rating of her books?
A. The mean book rating will not chnage
B. The effect on the mean of the book rating cannot be determined
C. The mean book rating will decrease
D. The mean book rating will increase
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