What will the speaker discuss first

A. how dreams are modified in their courses
B. the difference between sleep and wakefulness
C. why sleep is of great benefit to memory
D. the functions of a good night’s sleep

A. unnecessary because most workers are well protected by existing labor laws
B. harmful to the economic interests of women workers while offering them little or no actual protection
C. not worth preserving even though they do represent a hardwon legacy of the labor movement
D. controversial because male workers receive less protection than they require