In the novel, Jane Eyre must make many difficult choices,
(like when she forces)
(and, as an example, when she forces)
(for example, by forcing)
(as exemplifies by when she forces)
(including forcing)
herself to leave the house of Mr. Rochester, the married man she loves.
So basically the answer is the last one (including forcing) but I don’t know why, because how do we use (verb+ing) twice at once? isn’t it supposed to be INCLUDE FORCING?