This would be an example of checks and balances.
The President can fill vacancies that occur but that power is not limitless. Congress, specifically the US Senate, has the power to advise and consent. So, the President cannot circumvent the Senate's advise and consent power with recess appointments.
This allows the country to have valuable staff, even during vacancies, but still requires the Senate's approval.
The answer is C. Should recycling be mandatory.
Feudalism declined during the Crusades because B. many knights lost their lives and fortunes in battle.
<h3>What is Feudalism?</h3>
This refers to the system of land ownership where a lord gives out land to his faithful vassal, as reward for work.
Hence, we can see that this system declined during the Crusades primarily because there was a great loss of life by the knights in the bitter battle that ensued.
Read more about feudalism here:
brainly.com/question/3143141
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Pretty sure its either a or b
