Research Concerning Internal Desynchronization Done by Stanley Cohen at the University

Research concerning internal desynchronization done by Stanley Cohen at the University of British Columbia found that:

A) the spring shift to daylight savings time produced a short-term increase in the likelihood of accidental death, but the fall shift had little effect.
B) the fall shift to daylight savings time produced a short-term increase in the likelihood of accidental death, but the spring shift had little effect.
C) small desynchronizations had little effect on safety in the workplace.
D) both the spring and fall shifts of time increased the likelihood of accidental deaths.