The first train took twenty-six minutes to complete the route, which ran from City Hall to West 145th Street "in under a half an hour." Which of the following alternatives to the quoted portion would

The first train took twenty-six minutes to complete the route, which ran from City Hall to West 145th Street "in under a half an hour."

Which of the following alternatives to the quoted portion would NOT be acceptable?

NO CHANGE

in the completion of its route.

in twenty-six minutes.

DELETE the quoted portion and end the sentence with a period.

Answers should be complete and with an explanation.