Which is an example of the executive branch imposing a check on the legislature's power to make laws?
a.
a court declares a law unconstitutional.
b.
the president vetoes a bill.
c.
a bill dies in committee.
d.
a member refuses to sponsor a bill written by an executive agency.
e.
the president appoints a federal justice.

The correct answer is B The president vetoes a bill

B. The president vetoes a bill.

Explanation:

The system of check and balances is the system whereby all three branches of the government oversees, limit and check each other so no branch abuses from its powers. Through this principle, each branch can respond to the action of the other.

For example, under this system, the Legislative branch is responsible for proposing and passing bills, however, bills cannot become law until they are sent to the President (the head of the Executive branch) for signature. The President can impose a check on that Congress' power by vetoing the bill. If the President vetoes the bill, then it has to go back to Congress, which has the opportunity to override that veto with enough votes.

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.