When Using Index Cards to Help with the Tracing of the Execution

Multiple Choice

When using index cards to help with the tracing of the execution of an object by hand, what is written on the back of the card?

A) The names of all known tester classes for the object.
B) The key equations implemented by the constructor.
C) A table with the values of all of the instance variables.
D) The methods that the object can execute.