Which of the following sentences from this section helps explain why Churchill includes such specific details about material losses (such as the loss of over 1,000 guns and all transport vehicles)? A. “That expansion had not been proceeding as far as we had hoped.” B. “This loss will impose a further delay on the expansion of our military strength.” C. “Work is proceeding everywhere, night and day, Sundays and week days.” D. “The best of all we had to give had gone to the British Expeditionary Force”