To answer this question, we need to understand the HTML header tags.
In HTML, there are six levels of header tags, denoted by h1 to h6. These header tags are used to define the headings and subheadings of a webpage, with h1 being the highest level and h6 being the lowest level.
The statement "H1 is the smallest header tag" is incorrect. The smallest header tag is actually h6, not h1.
Therefore, the correct answer is:
B. False