Answer:
b. False
Step-by-step explanation:
Search engines crawl a significant portion of the web, but they do not cover the entire internet. The exact fraction of the web that search engines crawl is not publicly disclosed, but it's more than just a fraction less than half. They aim to index as much content as possible, but there are parts of the internet that may not be accessible or indexed by search engines due to various reasons, including privacy settings, restricted access, or dynamic content.