Answer:
The correct answer to your problem is D, 26%.
Explanation:
Using the formula: difference/old, the percentage increase in the area of the building space can be evaluated.
By finding the difference in terms of 17,010 and 13,500, result is 3,510.
By finding the quotient of 3,510 (difference) and 13,500 (initial building area), the result is 0.26
The product of 0.26 and 100 (to get a percent) results in 26%
Therefore, D is the correct answer.