When Performing a Table Lookup,it Is a Good Idea to Include

Multiple Choice

When performing a table lookup,it is a good idea to include validation because _______.

A) when looking for a table it is very likely that the table will not exist
B) the user should be notified if there is no match found in the table
C) validation will add a new element to the table if no match is found
D) it will cause the lookup to perform much faster than without validation