Find a matrix A and a column matrix B that describe the following tables involving credits and tuition costs. Find the matrix product AB, and interpret the significance of the entries of this product.
?
A.
AB = 
Tuition for Student 1 is $940, tuition for Student 2 is $810, and tuition for Student 3 is $650.
B.
AB = 
The number of credits for Student 1 is 12, the number of credits for Student 2 is 15, and the number of credits for Student 3 is 12.
C.
AB =
Tuition for Student 1 is $840, tuition for Student 2 is $660, and tuition for Student 3 is $900.
D.
AB = 
The number of credits for Student 1 is 12, the number of credits for Student 2 is 17, and the number of credits for Student 3 is 15.
Answer: A
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