A straight highway is 100 miles long, and each mile is marked by a milepost numbered from 0 to 100. A rest area is going to be built along the highway exactly 7 miles away from milepost 58. If 'm' is the milepost number of the rest area, which of the following equations represents the possible locations for the rest area?
A| 58 - m | = 7
B| m + 7 | = 58
C| m - 7 | = 58
D| 58 + m | = 7
A| 58 - m | = 7
B| m + 7 | = 58
C| m - 7 | = 58
D| 58 + m | = 7