Choose the option that correctly replaces the underlined words with t…

The correct answer is Option (2) → If we ignore these imaginary processes, then they become perfunctory.

• Uncheck here is the opposite of "check" (to watch over, to control): to leave the processes unattended, without watching over them. Ignore, meaning to pay no attention to, is the closest of the given words.
  Example: If you ignore a small leak, it soon becomes a big one.
• Mechanical means done without thought or feeling, automatically. Perfunctory means done as a routine, with little care or interest, so it is the synonym.
  Example: The guard gave our bags a perfunctory check and waved us in.

Why the Other Options are Incorrect?

Option 1: If we perform these imaginary processes, then they become efficient. — Incorrect.

• "Perform" means to carry out, the reverse of leaving something unattended.
• "Efficient" means working well without waste, a word of praise, while "mechanical" here means thoughtless.

Option 3: If we resolve these imaginary processes, then they become methodical. — Incorrect.

• "Resolve" means to settle or to decide firmly.
• The word "methodical" means orderly and systematic, again a word of praise, not thoughtless.

Option 4: If we spoil these imaginary processes, then they become inefficient. — Incorrect.

• "Spoil" means to damage.
• "Inefficient" means wasteful of time or effort, not routine and thoughtless.

Note: "Ignore" is not a precise synonym of "uncheck", which in everyday use means to remove a tick mark, or in the older sense to leave unrestrained. Option 2 is the answer because "perfunctory" fits "mechanical" and no other option offers a closer pair for the two words.

 

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