A schedule is fixed 623 days after 11 September 2013, which was Wednesday. On which weekday is the schedule?

Correct answer: Option C — Wednesday. 623 = 89 complete weeks + 0 days. Complete weeks do not change the weekday. Moving after by 0 day(s) from Wednesday gives Wednesday. Option A (Thursday) is rejected because it does not equal the computed result; it represents a counting, direction, leap-year, interval, or hand-motion error. Option B (Friday) is rejected because it does not equal the computed result; it represents a counting, direction, leap-year, interval, or hand-motion error. Option D (Sunday) is rejected because it does not equal the computed result; it represents a counting, direction, leap-year, interval, or hand-motion error.