The passage lists two main benefits of using long-lasting (archival quality) paper:
1. Preserving the knowledge base of society — cultural and social benefit.
2. Helping the publishing industry — economic benefit, as it reduces the financial strain caused by conservation costs.
It also notes that by reducing conservation costs, libraries can spend more on acquiring new books, thus enabling more books to be bought.
However, there is no mention that producing long-lasting paper will result in increased government funding or allocations for libraries.
Option (a) is mentioned as a cultural reason.
Option (b) is mentioned as a benefit related to acquisition budgets.
Option (d) is explicitly mentioned as an economic advantage.
Thus, (c) is correct as it is the only option not supported by the passage.