Answer completely and carefully based on web services for thumbs up.

From the four options in each part, state the correct letter and reason why you say that is correct letter.

e) In the PageRank algorithm, a rank sink is a page that A. has no outbound links B. accumulates PageRank but does not distribute it C. has no inbound links D. has a circular relation with another web page f) An HTTP request can have the following parts: A. A request method B. A request URL C. A status code D. A block of headers g) The following are acceptable media types for an HTTP payload: A. text/plain B. image/HTML C. text/vnd.ms-powerpoint D. application/json h) We use the HEAD HTTP method to A. check if a resource has been modified B. set a column header (field name) in a database table C. determine if an object (resource) exists D. modify the header of a response