Looking at the previous rounds, my opponent has played rock twice (rounds 1 and 3) and scissors once (round 2). There appears to be a preference for rock. Additionally, I played scissors in the last two rounds, and my opponent countered with rock in round 3, suggesting they might be adapting to my moves. Since there's a pattern of my opponent favoring rock, I'll choose paper to counter this tendency. If they anticipate this and switch to scissors, that's a risk I'll take, but based on the limited data available, paper seems to be the strategic choice.