To apply a horizontal brick pattern to the background, which option is needed?

To apply a horizontal brick pattern to the background, the correct action involves accessing the pattern fill feature within the PowerPoint application. The specific choice indicates that one must navigate to pattern fill and select the fourth option in the sixth row, which is known to correspond with the horizontal brick design.

Selecting this option is essential because pattern fills are distinct visual styles that can enhance the aesthetic appeal of the presentation background. The horizontal brick pattern, in particular, offers a structured and visually appealing layout suitable for a variety of presentation themes. By choosing this specific option, users are ensured that they correctly apply the desired pattern without inadvertently choosing a different style, which might not convey the intended visual effect.

In contrast, the other choices do not lead to the required horizontal brick pattern. The references to shape fill and background fill, as well as different specific options within the pattern fill selection, indicate alternative styles that do not provide the same appearance as the correct answer.