Which two policies would enable you to monetize all user-uploaded videos, but make partner-uploaded videos unavailable on your channel?

This policy combination achieves the desired outcome because the Usage Policy applies to user-uploaded content. Setting it to "Block" ensures that all user-uploaded videos are monetized and unavailable on your channel. The Match Policy, conversely, applies to partner-uploaded videos. Setting it to "Monetize" means these videos will generate revenue for you. The other options are incorrect because: "Usage Policy = Track, Match Policy = Monetize" would track user uploads but not block them, allowing them on your channel. "Usage Policy = Monetize, Match Policy = Block" would monetize user uploads but block partner uploads, which is the opposite of the desired outcome for partner content. "Usage Policy = none, Match Policy = Block" would not apply any specific action to user uploads and would block partner uploads, again not meeting the requirements.