The second storey of an office building with a sprinkler system contains ___ suites. Each suite is ___ wide and ___ deep. These suites are emptied into a public corridor. The floor is ___.
a) 10, 20m, 30m, 100m × 62m
b) 20, 10m, 30m, 62m × 100m
c) 10, 30m, 20m, 62m × 100m
d) 20, 20m, 30m, 100m × 62m