Read this idea about digital payments: small shopkeepers use QR codes but still keep cash for elderly customers. What is the central idea of the passage?

B. A mixed system is more inclusive

Step 1: Identify the concept: reading skill: main idea. Step 2: The correct option captures the whole idea: a mixed system is more inclusive. Step 3: Exam tip: For main idea, use the whole context, not one word only.

Step 1: यहाँ reading skill: मुख्य विचार पहचानना है। Step 2: सही option passage के पूरे विचार को जोड़ता है: a mixed system is more inclusive. Step 3: याद रखें: मुख्य विचार में पूरे passage का संकेत देखें।