Participants Are Told, "Hospital a Has an Average of 45

Participants are told, "Hospital A has an average of 45 births per day; Hospital B has an average of only 15 births per day." The participants are then asked, "Which hospital is more likely to have a day in which at least 60% of the babies born are female?" In answering the question, participants

A) seem insensitive to the fact that departures from the average case are more likely with a small sample.
B) seem insensitive to the fact that departures from the average case are more likely with a larger sample.
C) correctly realize that departures from the average case are not dependent on hospital size.
D) answer in a fashion governed by the law of small numbers.