It would say that the person read the message on the picture of the person. Example if you texted your friend at 7.00 and it said that the person read at 7.15. got it now?
It means multiplying or dividing by 10, 100, 1000, etc
Answer: HTTP GET
Explanation: There are many HTTP(Hypertext Transfer protocol) requests sent to the server from the client .The page that gets request while the hyperlink page is clicked by the client, opens a HTTP GET page that belongs to the Internet protocol's(IP)suite by server. It is a process for the revival of the data from a particular server. The data does not get effected during the process of the retrieval.
D I,II and III is the answer i think