The answer is (C)
consider how you could shorten the column labels.The label at the top of a column is sometimes wider than the data stored in the column. Expanding a column is an option but this may mean that you will not see as many columns on a page as possible. Wrapping text is also an option but has a downside to it as well since it will make the row with great height.
Rotating the labels is also a possibility but is also not recommended. This leaves us with shortening the column labels and keep dictionary worksheet for users. As much as you can, consider using acronyms and abbreviations.