I don't much like the question, because the correct answer is (row locks are never escalated to page locks) is not available as an option. Of course it's easy enough to say "OK, that was just a mistake, I 'll pick 5000 because that's the threshold for escalation to table (or sometime partition) locks" if you already know how escalation works. That however doesn't help someone who reads the question and doesn't know the answer, makes a guess, sees that the answer is 5000, and goes away with the impression that he has now learnt that row locks are escalated to page locks. The idea of QOTD is to help people learn (while having a bit of fun) not to mislead them.