Question

what is the value of floor -12

A. -13
B. -12
C. 12
D. 13

Answer 1

I'm not seeing anything absolute value bars | |

Thus, my assumption is -12 unless some information is missing from your question.

Answer 2

You can't have a negative floor, but you can have floors that are below ground. The -12th floor should represent the 12th floor below ground level. B would be the answer.