Answer:
That people will work for the good of all
Explanation:
Socialism is a political theory that states that mass production of Labor would be owned and regulated by the people, instead of the government.
Therefore, the belief of Socialism is that people will work for the good of all
The right answer is: That people will work for the good of all
explanation: This is because socialism seeks to divide resources equally (can't really do that if people won't work for the good of all)