The question below consists of a statement followed by two assumptions numbered I and
II. An assumption is something taken for granted or logically presupposed by the decision-maker. Decide which of the assumptions is implicit in the given statement. Statement: A municipal public library network has announced its decision to completely phase out physical membership cards and transition to a fully biometric-scan entry and borrowing system. Assumptions:
I. The vast majority of library members possess the physical capability and necessary identification credentials to enroll in and utilize the biometric scanning system.
II. Physical membership cards are the primary cause of long queue waiting times and administrative backlog at the library checkout counters.

Why Assumption I is implicit: When an organization mandates a complete transition to a new operational access method (biometric scanning), it must logically assume that its user base can actually interface with the new setup. If the library network believed that the majority of its members were physically unable or legally barred from registering their scans, implementing a total phase-out of cards would instantly shut down the library's utility. Therefore, user accessibility is an unstated, foundational necessity for this policy choice. Why Assumption II is NOT implicit: The statement merely announces a change in the access medium. It does not assert that physical cards are the leading cause of operational bottlenecks, administrative delays, or checkout lines. The library might be making this change for security reasons, data management, cost reduction, or environmental sustainability. Assigning a specific root cause to operational delays goes far beyond what the statement implies. Thus, only I is a necessary presupposition of the statement, making A the right answer.