In the following questions,some of the sentences has errors and some are correct.Find out which part of a sentence has an error. If a sentences is free from errors,your answer is (d).
`("when at last")/a` `("we got to the theatre")/b` `("the much publicised programme by the bollywood stars was begun")/c` `(No error")/d`

Explanation

(c) Use .had began. in place of .was begun.