Determine the number of cycles per day and the production quantity per cycle for this set of vehicles; use the sequence a-b-c-d.
a) 21 cycles per day, 3 production quantity per cycle.
b) 12 cycles per day, 15 production quantity per cycle.
c) 3 cycles per day, 12 production quantity per cycle.
d) 15 cycles per day, 21 production quantity per cycle.