At the opening of an council assembly, an invocation of thanks is offered and the General Committee will concede to the session's end date as prescribed. They likewise need to concede to the spot of meeting at the Headquarters as concurred in past sessions or in compatibility to most of the individuals.
The word idea starts with a vowel and the adjective needed shouldn't also end with a vowel. And in this case, you can't use a because it's a vowel. So, you use an.
