Why did business owners in the late 19th century attempt to establish trusts

The answer is: because bussinessman want to consolidate as much power as they can in large corporate companies.

Explanation:

It all started during the Second Industrial Revolution when the Standard Oil's General Solicitor helped Rockefeller to consolidate his control over the acquisitions of Standard Oil.

A corporate trust is used to refer to near-monopolies that are embodied as a group of corporations that tend to cooperate between them in different ways. These ways include from constituing trade association to owning stock in one another and more.

However, these trusts were acusated of seeking for abuse of their market power to engage in anticompetitve bussiness practice. Therefore that later took place the Sherman Antitrust Act in 1890.

explanation:

there are two statements that are incorrect.

1. the marshall plan was a lend lease program. it was an economic plan that europe redevelop itself after wwii.

2. einstein didn't really do anything to further the allied cause in building the bomb. he merely sent a letter to fdr telling him (in 1939) that if the united states entered the war, perhaps it would be wise to build the bomb before germany did. i would say this answer is incorrect, but when america entered the war 2 years later, fdr thought it might be a good idea to take einstein's advice.

the 4th choice is definitely so wrong that is likely the single answer of this question

its c