Multiple choice

The underlined portion of the following sentence has some errors. Four options are given below the sentence. Choose the correct option to improve the sentence.

The term 'hacking' originated probably in the 1960's while the modern computing system was evolving and people were studying computers in the labs of Massachusetts Institute of technology.

  1. The term 'hacking' originated probably in the 1960's when the modern computing system was evolving

  2. The term 'hacking' probably originated in the 1960's when the modern computing system was evolving

  3. The term 'hacking' probably originated in the 1960's while the modern computer system was evolving

  4. The term 'hacking' probably originated in the 1960's when the modern computer system was evolving

  5. No improvement.
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B Correct answer
Explanation

 Here, 'probably' and 'when' rectify the errors. An adverb qualifies an adjective, verb and another adverb. Here, adverb 'probably' qualifies the verb 'originated'. 'When' is used in that condition when an action is completed. Here, an action (the origination of the term hacking) is completed. 

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