To style text as larger than adjacent text, the required tag is ``.
- ``: This tag is used to emphasize text, typically rendering it in italics.
- ``: This tag is used to indicate that the enclosed text is of strong importance, which typically renders it in bold.
- ``: This tag is used to underline text.
- ``: This tag is used to make the enclosed text appear larger than the surrounding text.
Thus, to achieve the goal of styling the text as larger than the adjacent text, the appropriate tag is ``.