Layoff Rates Are Much Higher Among Low-Skilled Workers Compared to High-Skilled

Layoff rates are much higher among low-skilled workers compared to high-skilled workers because:

A) The quasi-fixed labour costs of low-skilled workers are lower.
B) High-skilled workers have a smaller wedge or buffer between their marginal revenue product and their wage.
C) Low-skilled workers tend not to work as hard as high-skilled workers.
D) Hiring and training costs are significantly higher for high-skilled workers.
E) The quasi-fixed labour costs of low-skilled workers are higher.