In models B through D, the relationship between the unemployment rate and the burglary rate Select one: a. is unimportant since, even though it was statistically significant and of the expected sign, its coefficient estimates were always smaller than the young adult coefficients. O b. cannot be assumed to be different from zero since unemployment was insignificant in all models. This data seem to show that the unemployment rate has no effect on the burglary rate. O c. seems relatively stable at about a 60-unit increase in the burglary rate for every 1% increase in the unemployment rate