Which of the following objections was most important?

Question: Which of the following objections was most important!?

Nativist labor leaders objected to immigrant workers for many reasons!. Which of the following objections was most important!?

A!. Immigrants lowered wages for everyone!.
B!. Most immigrants couldn't speak English!.
C!. Most immigrants were not Protestant!.
D!. Immigrants were not very good workers!.
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Best Answer - Chosen by Asker:

Any influx of labour will reduce the rate of pay for workers, when there is an abundance of workers they tend to undercut each other to secure work!.
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