Question

—u.s. constitution article i, section 7, clause 3
this ensures a system of checks and balances because -
a it allows the president to repeal a bill that has become law if the president was not made aware of all the votes that preceded the final vote.
b it ensures a bill does not become law if the president does not sign it while congress is in session.
c it slows down the legislative process by requiring every single vote in the senate or the house of representatives be presented to the president.
d it allows the house of representatives and senate to override a presidential veto by re - passing the bill with a two - thirds majority override.

Explanation:

To solve this, we analyze each option based on U.S. Constitution Article I, Section 7 (veto and legislative process):

• Option A: The president cannot repeal a law post - enactment for this reason. This is incorrect.
• Option B: If the president doesn't sign a bill while Congress is in session, it doesn't become law (pocket veto - related, but here when Congress is in session, no signature = no law). This aligns with checks/balances (executive checks legislative).
• Option C: Not every single vote is presented to the president. This is incorrect.
• Option D: While override is a check, the question is about “this” (likely the president’s role in bill - becoming - law). Option B is more about the president’s direct check on a bill becoming law.

Answer:

B. It ensures a bill does not become law if the president does not sign it while Congress is in session.