task_categories:multiple-choice task_categories:visual-question-answering task_categories:reinforcement-learning language:en license:cc size_categories:100K<n<1M format:parquet format:optimized-parquet modality:image modality:text library:datasets library:pandas library:polars library:mlcroissant arxiv:2509.25941 region:us MCQA Multimodal VQA MCQ RL RLVR