The Behaviour of the Unemployment Rate in Canada Over the Period

The behaviour of the unemployment rate in Canada over the period from 1960 through the 1990s can be characterized as

A) an upward trend over the entire period.
B) an downward trend from 1970 through the mid-1980s followed by a downward trend for the remainder of the period.
C) a upward trend from the late 1960s through the mid-1980s followed by a slight downward trend for the remainder of the period.
D) a downward trend over the entire period.
E) a very volatile period for unemployment rates.