The correct answer is A. background-position-x.
The background-position property defines the initial position of a background image. It takes two values, which represent the horizontal and vertical position of the image, respectively. The horizontal position is defined by the background-position-x property, and the vertical position is defined by the background-position-y property.
For example, the following CSS code will position a background image 10px to the right and 20px from the top of the element:
css
background-position: 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/>
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