In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".
He claimed that he (have corrected) the ringing on both the clocks.
Which country hosted the 'Bodhi Parva : BIMSTEC Festival of Buddhist Heritage' from 8-10 December 2017 as part of BIMSTEC's 20th anniversary celebrations?