From the given options, choose the one which gives the correct meaning for the expression

To be above board

To be honest in any business deal

The correct answer is > To be honest in any business deal.

The idiom to be above board means to be honest and open in one's dealings. It is often used in business contexts to describe someone who is fair and trustworthy. In the sentence, the speaker is saying that they want to be honest and open in their business dealings. This is why the idiom to be above board is used in this context.

The other options are incorrect.

• To have a good height is not correct because the idiom to be above board does not refer to height.
• To be that tallest person is not correct because the idiom to be above board does not refer to height.
• To try to be beautiful is not correct because the idiom to be above board does not refer to beauty.