$(17$ points$)20.$ Page Rank A$)$ Explain the page rank algorithm. $($How it works and its assumption$)(4$ points$)$ B$)$ Why is page Rank important? $(3$ points$)$ C$)$ What is the page rank of B in the figure? $(10$ points$)$ A B Page Rank: $12$ Page Rank: $??$ E Page Rank:... Page Rank: $...$ Page Rank: $....$ Page Rank: $...$