The correct answer is not A. Im sorry to say this but the correct answer is B. por la puerta de embarque (which will by by the gate). If you use the A option there would be a grammatical mistake putting the word "por" before something that makes no sense. Im a native spanish speaker and a teacher so believe the better way to say is por la puerta de embarque
Answer:
Happy Birthday! I hope you have a good one!
Explanation:
The answer is está. This is the answer because it’s saying that the object is in the kitchen. Estamos is incorrect because it means we are, estoy is in correct because it’s saying i am, and estas is incorrect because it’s saying you are. :)