Which statements can you use to overwrite spaces in a string with the letter 'A'?

The correct statement to overwrite spaces in a string with the letter 'A' is "OVERLAY." This function allows you to insert or overwrite part of a string at a specified position, which can effectively be used to replace spaces with a different character.

When you want to modify specific characters in a string based on their position, OVERLAY is particularly useful, as it provides control over which parts of the string to change while leaving the rest intact. By specifying the position of the spaces and the replacement character 'A', you can achieve the desired outcome.

In contrast, functions like CONDENSE primarily serve to remove unnecessary spaces from a string rather than replace them. SHIFT LEFT is used to alter the position of characters in a string but does not specifically target spaces for replacement. REPLACE is more suited for matching specific substrings or characters and substituting them but does not operate in a manner that allows you to directly overwrite spaces with a predefined character in the same way that OVERLAY does.