Which of the following statements correctly uses the idiom 'at the eleventh hour’ by substituting the bold words?
A. While organizing the event, we realized that we we rerunning short of time .
B. The runner in the third place overtook the ones ahead of him at the last moment and won the race.
C. She believes in planning meticulously well in advance so that there is no exigency later.
D. He disturbed me late at night to inform me of his appointment as the Commissioner.