Mini read a book at a constant rate. The graph of her progress is shown. Which statement is true?
A. The slope of the line is different from the unit rate of 2/3 page per minute.
B. The slope of the line is different from the unit rate of 1/2 page per minute
C. The slope of the line is the same as the unit rate of 2/3 page per minute.
D. The slope of the line is the same as the unit rate of 1/2 page per minute