Under current U$.$S$.$ copyright legislation, works produced on a for$-$hire basis and owned by firms enjoy monopoly protection for

$q,$

$95$ years from the date of publication.

$50$ years after date of publication.

$70$ years after date of publication.

$75$ years from the date of publication.

Ideally, a patent should cover a long enough period of time for the inventor to $,$ but that period should not be so long that it allows the inventor to $$

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eam a hearty return; charge a high monopoly price permanently

contribute to the social interest; only receive a slice of the social benefits

contribute to the social interest; prevent broad public access to inventions

earn a rate of return; prevent broad public access to classic works