The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be A. 637 hectares/m3/sec B. 837 hectares/m3/sec C. 972 hectares/m3/sec D. 1172 hectares/m3/sec

Outlet factor = kor depth / kor period

In this case, the kor depth is 190 mm and the kor period is 14 days. Therefore, the outlet factor is 190 mm / 14 days = 13.57 mm/day.

To convert this to hectares/m3/sec, we need to multiply by the conversion factor 1 hectare = 10,000 m2 and the conversion factor 1 day = 86,400 seconds. This gives us the outlet factor of 13.57 mm/day * 1 hectare/10,000 m2 * 86,400 seconds/day = 637 hectares/m3/sec.

The other options are incorrect because they do not take into account the kor depth or the kor period.