पुस्तकालय परिवेश को प्रभावित करने वाले बाहरी परिवर्तनों या पर्यावरणीय ताकतों के मुख्य प्रकारों में शामिल हैं: (i) तकनीकी परिवर्तन (ii) उपयोगकर्ताओं की शिकायतें (iii) सरकारी नीतियां (iv) आंतरिक पुस्तकालय नीति में संशोधन

Given below are two statements, one labeled as Assertion (A) and the other as Reason (R): Assertion (A): A library needs to generate a satisfied customer base that supports library programs. Reason (R): If a library's resources and services meet customer expectations, repeat use cannot be ensured. In light of the above statements, choose the correct option:

Given below are two statements, one labeled as Assertion (A) and the other as Reason (R): Assertion (A): Performance measurement is useful for decision-making in libraries and information centers. Reason (R): The right decision at the right time helps libraries and information centers achieve their goals. Choose the correct code: