Which group would have been most likely to oppose New Deal reforms?

farmers

business owners

construction workers

bank depositors

It would be "business owners" who would have been most likely to oppose New Deal reforms, since many of the New Deal programs sought to eliminate corruption in business--although many business welcomed these reforms as well.

business owners

The New Deal imposed regulations and wage requirements which would most impact business owners negatively. Those who were wealthy would have been most frustrated by price caps and the setting of a minimum wage. This would cut into their profits and in the short term cause economic decline for them individually.