The Following Graph Shows the Ratio of Bachelor's Degrees Earned

Multiple Choice

The following graph shows the ratio of bachelor's degrees earned by women to men from 1960 through 1990. How fast was the ratio changing in the period from 1960 to 1980? From 1980 to 1990? ​ ​

A) 0.47/yr from 1960 through 1980 0.06/yr from 1980 through 1990 ​
B) 0.235/yr from 1960 through 1980 0.06/yr from 1980 through 1990 ​
C) 0.047/yr from 1960 through 1980 0.006/yr from 1980 through 1990 ​
D) 0.047/yr from 1960 through 1980 0.012/yr from 1980 through 1990
E) 0.0235/yr from 1960 through 1980 0.006/yr from 1980 through 1990 ​