Any help with this formula would be greatly appreciated.

In cells under column C, I have a drop down box with people's names,
followed by some data collection cells in coumns D through I. Columns D
through I are marked with an 'x', if that data point is true for that person.

For each person's name, I need to count the number of instances the 'x' is
printed for specific columns D through I. I have additional columns set up
to collect this information. I tried writing a simple if/then formula, but
the result is always false, even when it should be true. Any advice on how
to do this correctly?

Thanks much.