Question

A parking lot began with four times as many spaces in a row as rows. After being expanded, 5 more rows were added and 12 more spaces in each row. The maximum number of spaces that the parking lot will hold is 491.

If r represents the original number of rows, which of the following represents this situation?

A. 4r^2 < 551

B. 4r^2 + 32r + 60 < 491

C. 4r^2 + 60 > 491

D. 4r^2 + 32r > 551