Direction: In the following questions, some of the sentences have errors and some have none. Find out which part of a sentence has an error. The number of that part is your answer. If there is No error, your answer is (4), i.e., No error.
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Solve the question according to given instruction.
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- Sudoku was first designed in the 1970s
- by a retired architect
- and freelance puzzle constructor.
- No error
Correct Option: D
No error.
