Question 11

A developer should use the background-repeat property to ensure that a background image appears only once.

The background-repeat property controls the repetition of background images in CSS. By setting this property to "no-repeat", the developer can ensure that the background image is displayed only once.

A) background-repeat

This option is correct because the background-repeat property specifically determines whether a background image should repeat or not. By using the value "no-repeat," the image will be displayed a single time, fulfilling the requirement of the question.

B) background-clip

This option is incorrect as the background-clip property defines the area within which the background is painted. It does not control the repetition of the background image, which is the focus of the question.

C) background-origin

This option is also incorrect. The background-origin property specifies the positioning area of the background image relative to the element's border or padding. It does not influence whether the image appears once or repeats.

D) background-size

This option does not address the question correctly. The background-size property is used to control the size of the background image, but it does not affect whether the image is repeated or displayed only once.

Conclusion

The background-repeat property is the only option that directly addresses the requirement for a background image to appear only once. The other options—background-clip, background-origin, and background-size—do not relate to the repetition of the image, making them unsuitable for this specific purpose. Thus, the correct answer is definitively A).