If Workers on the Third Shift Make $1 Per Hour

Multiple Choice

If workers on the third shift make $1 per hour more than workers on the first shift,then

A) working during the day is worth less than $1 per hour to all workers.
B) working during the day is worth exactly $1 per hour to all first shift workers.
C) working during the day is worth more than $1 per hour to all third shift workers.
D) working during the day is worth at least $1 per hour to all first shift workers.