Frictional Unemployment in Canada Has Decreased in Recent Years Because

Frictional unemployment in Canada has decreased in recent years because

A) labour- market flexibility in Canada has decreased.
B) the labour- force participation rate for men has been falling.
C) the benefits received under the employment- insurance system have become less generous.
D) the labour- force participation rate for women has been falling.
E) workers have higher levels of education and training.