The process of amending the constitution is leading to a proportion of proposed amendments succeeding.

The process of amending the constitution is "difficult", leading to a "very small" proportion of proposed amendments succeeding.

The authority to amend the Constitution of the United States is is gotten from Article V of the Constitution. After Congress proposes an amendment, the Archivist of the United States, who heads the National Archives and Records Administration (NARA), is accused of obligation regarding overseeing the endorsement procedure under the arrangements of 1 U.S.C. 106b.  

The Constitution gives that an amendment might be proposed either by the Congress with a 66% larger part vote in both the House of Representatives and the Senate or by an established tradition called for by 66% of the State assemblies.  

i think it's b or c hope this