Using a definite, singular article
It's funny, because he uses 'a', which is indefinite.
It's also funny because English does not have a plural indefinite, unless you count 'some', but that is not actually on the list of three articles.
EDIT: Even more funny is how English doesn't even have a definite, singular. It has an indefinite/definite, singular. It is impossible to mess up grammar in that way while using 'the'.