Discussion

Explanation:

In legal terms, attach means ‘to seize persons or property by legal writ’. Impound also has a similar meaning– ‘to seize and retain in legal custody’. The word is generally used in terms of confiscating illegal possessions. But, for royalties and trust funds when seized by the use of a legal writ are said to be attached. Detached being the opposite, does not apply. Nor does the word ‘closed’.
Hence, the correct answer is option 3.

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