The words "stubbornly" and "mockingly" in the paragraph contribute to the overall meaning by enhancing the perception of Mati's struggle against the escape room. Specifically, they emphasize that Mati perceives the room as an adversary; the door's refusal to open is described as "stubborn," implying it is resisting his efforts. Additionally, the clock "mockingly" ticking down suggests a sense of taunting, heightening the tension and pressure Mati feels as he races against time.
Therefore, the best answer is:
2. They give the impression that Mati thinks of the room as an adversary.