Step 1: Understanding the Question.
We have six sentences about giving up the idea of a single 'Truth' in history, and we must arrange them into one coherent paragraph. To do this, find the sentence that states the main idea first, then trace how each later sentence builds on the one before it.
Step 2: Key Approach.
Look for pronouns and phrases that point backward, such as "It", "The same is true", and "To try to argue", since these can only follow the specific idea they are referring to. Also look for a sentence that clearly wraps up the paragraph.
Step 3: Detailed Explanation.
Sentence 2 makes the core claim of the paragraph: giving up 'Truth' does not mean falling into relativism, where every account of events is treated as equally valid. This is the natural opening line.
Sentence 3 begins with "It does not, for example", where "It" refers back to the relativism just denied in sentence 2, and gives a first concrete example: denying relativism does not mean giving support to Holocaust deniers. So sentence 3 follows sentence 2.
Sentence 5 backs this up with a fact: "The evidence for the systematic murder of more than six million people by the Nazis is overwhelming." This naturally follows the mention of Holocaust denial in sentence 3.
Sentence 6 continues the thought, saying that to argue the Holocaust never happened is to go against this evidence and "violate the voices of the past", directly building on the evidence stated in sentence 5.
Sentence 1 then opens with "The same is true for less fraught examples", which needs a first example already on the table, exactly what sentences 3, 5 and 6 provided with the Holocaust. Sentence 1 then adds a second example, the colonization of the New World, generalising the point.
Sentence 4, "What I am suggesting here is complex, but its importance demands a careful reading", works as a closing remark once both examples have been given, summing up the whole argument rather than starting it.
Put together, this gives the order 2-3-5-6-1-4, which is option 1.
Step 4: Final Answer.
The correctly arranged paragraph reads 2-3-5-6-1-4, so the answer is option 1.