Sonia wrote a program to figure out the area of a bedroom, but the outputs don't make sense. Which of the following might be a useful tool to determine the problem?
A. database
B. HTML
C. trace table
D. CSS
C. trace table
A trace table could help Sonia track the values of variables in her program as it executes, allowing her to identify any errors or inconsistencies in her calculations. This could help her pinpoint the source of the incorrect outputs and troubleshoot her program effectively.