Explanation:

A 'patch' is a set of changes to a computer program or its supporting data, designed to update, fix, or improve it. Patches are commonly released by software developers to correct bugs, address security vulnerabilities, or add minor enhancements. They are frequently distributed online, often free of charge. Option (a) 'Version' refers to a specific release of a software product, not a bug fix. Option (c) 'Tutorials' are instructional guides on how to use software. Option (d) 'FAQ' (Frequently Asked Questions) is a list of common questions and their answers. Therefore, (b) 'Patch' is the correct term for a repair for a known software bug.