Answer-Below are three sentences (I), (II), and (III). One or more of them may contain a grammatical or usa...

Explanation Sentence I is incorrect. When two subjects are connected by neither... nor, the verb must agree with the subject closest to it. The grid operator is singular, so the verb should be was , not were. Sentence II is incorrect. In indirect questions, the subject comes before the helping verb. It should be where the team had discovered , not where had the team discovered. Sentence III is correct. This exclamatory sentence uses correct word order and punctuation.

Question

Below are three sentences (

I , (I
I , and (II
I . One or more of them may contain a grammatical or usage error. Choose the option that identifies which sentence(s) are error-free. I. Neither the solar energy developers nor the grid operator were aware of the line failure. II. The researchers asked the oceanographer where had the team discovered the invasive weed. III. What a remarkable breakthrough the quantum computing center achieved in data security this year!