8) Compare the two groups of data. Which statement is true? A) spread of data for Mrs. Plum's class is 6 points greater than Mr. Scarlet's class B) spread of data for Mrs. Plum's class is 7 points greater than Mr. Scarlet's class C) spread of data for Mrs. Plum's class is 9 points greater than Mr. Scarlet's class D) spread of data for Mrs. Plum's class is 14 points greater than Mr. Scarlet's class