According to TIBCO EMS documentation, the server on which a route is defined in the routes.conf file is the server that actively initiates the connection. In this scenario, only Server-A has a route entry for Server-B, so Server-A initiates the connection.

The term "active-active" for a route implies a symmetric configuration where both servers can initiate the connection, which requires route entries on both servers. The current setup is asymmetric. However, no parameter shown, including zonetype=lhop (which only affects message forwarding logic), prevents an administrator from adding a corresponding route entry to Server-B's configuration file. Therefore, the route can be reconfigured or "promoted" to an active-active state.

B. Server-B has an empty routes.conf file, so it cannot initiate a connection to Server-A; it only listens for incoming route connections.

C. There is no technical constraint in the provided configuration that prevents an administrator from making the route bi-directional ("active-active") by updating Server-B's configuration.

1. TIBCO Enterprise Message Service™ User's Guide (Version 10.2), Chapter 12: Routing Messages Between Servers, Section: "Configuring Routes", p. 328. This section states, "The server on which you define the route actively attempts to establish a connection with the other server." This directly supports answer A.

2. TIBCO Enterprise Message Service™ User's Guide (Version 10.2), Chapter 12: Routing Messages Between Servers, Section: "Configuring Routes", p. 328. The guide explains, "To create a two-way route, you must configure the route on both servers." This implies that a one-way configuration can be changed to a two-way ("active-active") one by adding the necessary configuration, supporting answer D.

3. TIBCO Enterprise Message Service™ User's Guide (Version 10.2), Chapter 12: Routing Messages Between Servers, Section: "Server Zones", p. 331. The description of lhop zone type confirms it only governs message forwarding behavior ("does not route messages to other zones") and does not impose restrictions on connection topology, which refutes the reasoning for option C.