Passage Summary: In the era of television, North America is producing way more book titles and selling more copies than before, but people aren't checking books out of libraries as often.

Reasoning: Since television's debut, the number of book titles has quadrupled and sales increased (though growth has slowed), while library circulation has remained stagnant or dropped.

Analysis: We are looking for a statement that must be true based on the provided trends in the publishing and library sectors. We know that the variety of books (titles) is up significantly and total sales are higher than in the pre-TV era, yet library usage is failing to keep pace. An ideal answer might connect these dots, perhaps suggesting that the increase in book ownership or title availability hasn't translated into increased library usage. Avoid choices that make broad claims about 'why' people are reading less or 'if' television caused these changes, as the stimulus only provides correlation, not causation.