Which of the following statements is true about the CSS snippet: p font-family: serif; ?
1) It changes the font of all paragraphs in the HTML document to a serif font.
2) It changes the font of all headings in the HTML document to a serif font.
3) It changes the font of all links in the HTML document to a serif font.
4) It changes the font of all lists in the HTML document to a serif font.