Multiple choice

The Central Intelligence Agency(CIA) __came about as a result of the National Security act of..

  1. what

  2. was what

  3. it was

  4. it was what
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B Correct answer
Explanation

The sentence uses a cleft-like structure where "was what" links the subject "The Central Intelligence Agency" to the nominal relative clause "came about as a result...". This emphasizes the origin of the agency. Simply using "what" or "it was" would result in an ungrammatical or redundant sentence structure.

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