Explanations:
उपरोक्त प्रश्न के अनुसार Receptive skills are listening skill and reading skill because these skills don't require the production of language. These skills focus on an individual's ability of understanding and comprehending language. Productive skills are speaking and writing skills because these skills can measure learner's ability to produce language. अत: उपरोक्त प्रश्न का अभीष्ट उत्तर विकल्प (b) होगा।