The first step in creating an effective worksheet is to make sure you ____.

A) apply font formatting
B) understand what is required
C) insert a chart
D) enter the data

Understanding what is required is crucial in creating an effective worksheet as it helps to determine what data needs to be entered and how it should be organized. Font formatting and chart insertion can be added later as design elements, but without a clear understanding of what is needed in the worksheet, these elements may not contribute to its effectiveness. Entering data is also important, but is not the first step in creating a worksheet.