Which of the following is a suspicious entry in the Volatility output attached?

Svchost.exe legitimately maintains multiple outbound connections to Microsoft-owned IP addresses, so a second connection is not inherently invalid without specific evidence the IP is malformed or non-routable.

PID 900 on a given system may legitimately own a UDP listening port depending on which Windows service is assigned to that PID, making this non-conclusive without further service-to-PID mapping.

An unusual port for PID 3872 is context-dependent and requires knowing what application owns that PID and its expected communication behavior before it can be considered suspicious.

A closed TCP connection to a web server with no owner process is suspicious because every legitimate network connection should map to a running process in memory; the absence of an owning process suggests the malicious process terminated after establishing the connection, performed process injection to hide itself, or used kernel-level techniques to obscure its network activity.