The freedom of private business to operate for profit competitively is called the .

The freedom of private business to operate for profit competitively is called the free enterprise system.

Explanation:

For a capitalist economy to grow, it is primarily necessary that there is healthy competition in the market. The free enterprise system dispenses equal opportunity for every single entity in the market to frame their own strategies.

And, also work on them in order to stand the competition and fetch profits. Private businesses take advantage of this system by customising their products and services on fronts like manufacturing, marketing, sales, after-sales service, etc.

In order to avoid falling back in the competition posed by market competitors, private businesses try and build their own unique selling propositions (USP's) and products that distinguish them from other producers in the market. This avails healthy market competition and the free enterprise systems are nurtured through the process.

C) It was dangerous for workers to go on strike because companies were willing to use force to break up a strike.

Explanation:

The Homestead strike was an open and violent confrontation between the union workers of the Homestead steel mill and the administration of that mill. This event would become one that resonates with workers union revolts and the fight for workers' rights.

Emma Goldman, in her autobiography "Living My Life" reveals how she and Sasha a.k.a Alexander Berkman participated in the demand of the workers' rights. And through her account of the event, we can know that going on strike was a dangerous thing for workers because companies use force to dissolve the strike, even if it leads to extreme steps.

Thus, the correct answer is option C.