It's almost certainly (c), and the rest of the ones that end with "and we're done". The first one is probably not (a) because it has a pronoun ("it's"), which w

It's almost certainly (c), and the rest of the ones that end with "and we're done". The first one is probably not (a) because it has a pronoun ("it's"), which would be a pain to program into a natural language process for this limited purpose.