For a bank, the account number field would be a good primary key because primary keys must be made up of numbers, not text

Where are the default cell styles located?

A) Format group B) Cells group C) Editing group D) Styles group

If you want to pass an array element into a method by reference, what will you need to do?

a) It always passes the element as a reference automatically. b) Use the keyword ref and/or out. c) All of the above. d) None of the above, passing in by reference of an array element is only possible if the array type is a reference type.