In the following sentence, choose the alternative that best improves the bracketed part. What if the government itself fails (to tackle that divisions) and lets parts of the country drift into anarchy again?

Introduction / Context:
This sentence refers to divisions in a country that the government may fail to handle, resulting in anarchy. The bracketed phrase "(to tackle that divisions)" is grammatically incorrect and must be improved. The key issues are subject verb form, demonstrative adjective ("that" versus "these") and singular versus plural noun ("division" versus "divisions").

Given Data / Assumptions:

• The sentence talks about multiple divisions within the country, so a plural noun is expected.
• We refer to divisions that have been described earlier in the passage, implying proximity and relevance, which usually take "these".
• The options are:
  • to tackled that divisions
  • to tackle these divisions
  • to tackle these division
  • No improvement
• The infinitive form after "fails" must be "to tackle", not "to tackled".

Concept / Approach:
We check three things:

• Correct infinitive form after "fails".
• Agreement between demonstrative ("this/that/these/those") and the number of the noun.
• Pluralisation of the noun to match the idea of several divisions.

We also choose the phrase that best fits typical usage in political commentary: "these divisions" is the standard expression when referring back to divisions already mentioned in the discussion.

Step-by-Step Solution:
Step 1: The correct infinitive is "to tackle". "To tackled" in option A is wrong because "tackled" is a past tense or past participle form. Step 2: The noun should be plural "divisions" because the sentence clearly refers to multiple lines of division in society. Step 3: "these" is preferred over "that" when referring to divisions that are immediate and central to the current discussion. Therefore, "these divisions" is more appropriate than "that divisions". Step 4: Option B "to tackle these divisions" satisfies all three requirements: correct infinitive, correct demonstrative and correct plural noun. Step 5: Option C "to tackle these division" fails on number agreement; "division" should be "divisions". Step 6: The original "to tackle that divisions" is wrong in both demonstrative choice and number, so "No improvement" cannot be correct.

Verification / Alternative check:
Insert option B into the sentence: What if the government itself fails to tackle these divisions and lets parts of the country drift into anarchy again? This reads smoothly and matches standard editorial language. The phrase clearly conveys that there are several serious divisions, and the government might not be able to deal with them effectively.

Why Other Options Are Wrong:

• to tackled that divisions: Wrong verb form and wrong combination of demonstrative and plural noun.
• to tackle these division: Correct verb form and demonstrative, but incorrect singular noun.
• No improvement: Retains a grammatically incorrect phrase.

Common Pitfalls:
Examinees may overlook small words like "that" and "these", but these demonstratives strongly affect correctness and nuance. Another common error is forgetting that verbs after "to" in such structures must be in base form. In English exams, these small grammar details often decide the correct answer, so it is important to check agreement and verb form carefully rather than relying only on general meaning.

Final Answer:
The correct improved phrase is to tackle these divisions, so the correct option is "to tackle these divisions".