A definite article and three words current, next and following
Q. You can obtain a ____ schedule for in-house online security courses at the employee website.
Could you please tell me what the answer is and why?
By the way, I am absolutely sure (D) can't be a answer.
On the one hand, I think there is no answer to select from.
Because I assume that the three words (A), (B) and (C) have to have a definite article before it. No?
The indefinite article 'a' in that sentence maks me confused.
Thanks in advance.