Set 7: Words in Context
Explanation
PASSAGE
Blockchain technology is praised for its ______, as the decentralized ledger makes it extremely difficult for any single party to alter past transaction records.
Which choice completes the text with the most logical and precise word or phrase?
Detailed Answer Explanation
This question asks for the meaning of a word as used in this specific context. If records cannot be altered, they are 'immutable'. Immutability is the quality of being unchanging over time or unable to be changed. Words can have multiple meanings, and context determines which meaning applies. Read the surrounding sentences carefully. Substitute each answer choice to see which maintains the intended meaning and fits the context. Many vocabulary words have multiple dictionary definitions, but only one fits the context. Use the surrounding sentences as clues. Try substituting each answer choice to see which one preserves the author's intended meaning without changing the sentence's message.
Key Evidence:
• "difficult ... to alter"
• "past transaction records"
Why others are wrong: C (Complexity implies difficulty to understand, but the context focuses on alteration.), A (Fragility means easily broken.), D (Mutability means ability to change.).
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