Answer:
Hello there the Correct answer is C. The number of keywords on the page.
Ranking of the website on google depends on many factors, such as content of the website, keywords, No. of users visiting the website and also the links that may internal and external links found on the website.
The external links on the website increase the credibility of the website. As the number of external links increases on the website, it looks more credible to the search engine. The search will assign good ranks if the website looks credible.
Page Rank algorithm is used to count the number of external links of the website to rank the website on Google. As much as the No. of links are on website, the website ranks high.
Hope it helps!