What field property would allow the user to enter two quote marks with nothing between them ("") into a field with a Short Text data type?

A _________ query is a query that searches a field and then displays records that contain duplicate values

A) find duplicates B) find unmatched C) select duplicates D) crosstab

The project planner should describe the skills or personnel needed for a task, often referred to as a(n) ____________________.

Fill in the blank(s) with the appropriate word(s).