Which option lists the correct steps to apply a style? Select the text, click the Home tab, and in the Styles Gallery, click to select a style to apply.
Select the text, click the Insert tab, and in the Formatting Gallery, click to select a style to apply.
Select the text, click the Home tab, and in the Font group, select a font, font size, and type to apply.
All of the options listed above are correct.

You can press the arrow key.

Answer notification;

Well, this code would box the whole body of an html document. by using the relative value for position, you are telling it to position relative to its normal position, which the top left corner is at (0,0). by using left: 50px, you are telling the box to set the left margin  edge to 50px and by using top: 50px, you are telling it to set the top margin edge to 50px. by doing this shifting, the top left corner of the box, which is at (0,0) would be positioned at (50,50)