The Clock Shifts in the Spring and Fall That Are

The clock shifts in the spring and fall that are necessitated by Daylight Savings Time often throw off the internal clocks of people for several days.If you've memorized the phrase "spring forward,fall back," then you might appreciate the hour of sleep that you gain in the fall,and abhor the hour of sleep lost in the spring.Research,in fact,shows that __________ actually increased significantly after the spring change in a sample of Canadian individuals.

A) days taken off from work due to illness
B) automobile accidents
C) birth defects
D) college exams submitted that earned a failing grade