Which of these indicates the start of the rising action of the excerpt

Yes, Winston is a (ordinary) hero.

Explanation:

In the novel 1984 we follow Winston, eager to change a social system that is suppressing him and other ordinary people. From the meeting with O´Brien, who claims to be part of the revolutionary Brotherhood, Winston is torned apart by eternal hope on one side to get in touch with other 'revolutionaries' and to belong to a group, and the almost certain conviction that O'Brien is lying. And therefore, he realizes that he cannot succeed.

For ordinary people (and a ordinary hero) don´t have the intellectual cleverness (or shrewdness) to obtain their goals.

He is not the kind of hero that people could admire; rather he is a sad hero who is defeated by his emotions.