A Correlation Coefficient of -0

A correlation coefficient of -0.79 between time spent in typing practice and the number of typing errors means that:

A) there is a positive correlation between the number of hours spent in typing practice and the number of typing errors
B) there is a cause-and-effect relationship between typing practice and typing errors
C) as time spent in practice increased, errors tended to decrease
D) the correlation coefficient has no meaning because it is negative