Figure $1-$ rqt$\_$graph

In the rqt$\_$graph shown in Figure $1,$ select the statement that correctly states the role of the nodes in the graph.

Node$2$ is a subscriber to topic from Node$3$ and Node$4,$ while Node$2$ is a publisher to Node$1.$

Node$2$ is a subscriber to topic from Node$1,$ Node$3$ and Node$4,$ while Node$2$ is a publisher to Node$4.$

Node$1,$ Node$2,$ Node$3$ and Node$4$ are all subscribers.

Node$2,$ Node$3$ and Node$4$ ate solely subscriber, while Node$1$ is a publisher