- EOT (Embedded OpenType): EOT is a font format developed by Microsoft for use in web pages, but it is now less commonly used in favor of more modern formats like WOFF.
- SYN: SYN is not a font format used in web pages.
- WOFF (Web Open Font Format): WOFF is a widely supported font format specifically designed for use on web pages. It allows web designers to include custom fonts in their web pages.
- SVG (Scalable Vector Graphics): SVG is a graphic format used for vector-based images, not for fonts.
Therefore, the correct answer is 3. WOFF.