I would guess that (in a general academic context) the problem-setter meant the latter, but would be grumpy about this because what they said was the former.

Then I would get distracted by trying to calculate the answer to the former based on estimates of the percentage of intersex and genderqueer people in the population, before giving up in disgruntlement at the lack of good statistics (not to mention the inevitable fuzziness of categories, many intersex people being binary-gendered, etc. etc.).

Finally, if the problem-setter did indeed mean the latter, I would hope very much that they were not in charge of teaching formal logic.