The power of advice and consent on treaties and presidential nominations is exclusively given to the Senate. This is specified in Article II, Section 2 of the U.S. Constitution. The Senate must approve treaties by a two-thirds majority and confirm presidential nominations. ;
The Senate exclusively holds the power of advice and consent on treaties and presidential nominations, as specified in Article II, Section 2 of the U.S. Constitution. This requires a two-thirds majority for treaties and confirmation for presidential nominations, ensuring checks and balances in government. Therefore, the correct answer is C. the Senate.
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