networking question please help!

GET /HTTP/1.1 Host: www.brazil.comrin User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:64.0) Gecko/20100101 Firefox/64.0 r Accept: text/html,application/xhtml+xml,application/xml;q-0.9,*/*q 0.8 r Accept-Language: en-US,enq 0.5 r Accept-Encoding: gzip, deflater DNT: 11r Connection: keep-alive Upgrade-Insecure-Requests: 1 n r n HTTP/1.1 200 0K n Server: nginx Date: Sat, 16 Feb 2019 17:00:59 GMT Content-Type: text/css r n Content-Length: 1030 Last-Modified: Thu, 20 Oct 2016 06:26:04 GMTr Connection: keep-alive ETag: "5808637c-406 Accept-Ranges: bytes rn Irln a. What is the URL of the document requested by the browser? b. What version of HTTP is the browser running? c. Does the browser request a non-persistent or a persistent connection? d. What type of browser initiates this message? Why is the browser type needed in an HTTP request message? Was the server able to successfully find the document or not? What time was the document reply provided? e. f. When was the document last modified? g. How many bytes are there in the document being returned? h. Did the server agree to a persistent connection