If You Are Asked Under Oath to Disclose Your Medical

If you are asked under oath to disclose your medical facility's yearly income, what would you do?

A) State that the information is in the computer and you can retrieve it later.
B) Tell the lawyer that information is none of his business and has no bearing on the case.
C) Make up a figure and hope it is correct.
D) Because this is information you would not usually know, you would simply state, "I don't know."