The Effect of Immigration on Industry Output in the

The effect of immigration on industry output in the
Short run is:

A) to lower it across all industry.
B) to raise it in sectors that do not get immigrant workers but lower it where immigrants are employed.
C) that, surprisingly, additional workers are employed, but there is no effect on industry output.
D) that it raises industry output overall, and the rise is skewed so industries employing immigrants rise by
More-thus shifting the PPF.