What Does the Analytic Solver Platform Integer Tolerance Factor of 0

Multiple Choice

What does the Analytic Solver Platform integer tolerance factor of 0 accomplish?

A) Stops B & B after 100% of all solutions are examined.
B) Stops B & B when any feasible ILP solution is 0% from the current ILP solution.
C) Stops B & B when the true optimal integer solution has been found.
D) Stops B & B when no more than 0% of the changing cells have integer values.