Under 46 CFR §111.25-15, what is the minimum short-time motor rating required for a direct-acting windlass?

Why C is correct

Table 111.25-15 specifies a minimum short-time rating of one-fourth hour for a direct-acting windlass. A windlass with hydraulic transmission has a different, more complex duty cycle requirement; one-half hour applies to deck winches and direct-acting capstans.