Which are guidelines for using Themes? Check all that apply.Using different cell styles can help you differentiate different types of data.Fonts should be easily readable and of appropriate size.You cannot customize the default themes.Be consistent with themes across worksheets and workbooks.Applying a new theme will only change cells in a workbook that have no other formatting applied.

Different cell styles can make categories of data easier to distinguish, and readable fonts at an appropriate size improve clarity. Keeping themes consistent across worksheets and workbooks also creates a coordinated look. You can customize default themes, so C is false; applying a new theme can change formatting that uses theme colors or fonts, so E is false.

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