It would be D, as inference implies that you are implying something from the text, as the question infers.
The expression, tone, and mood with help him understand the uncovered meaning of the play.
Hope this helped!
The Civil War was America's bloodiest conflict. The unprecedented violence of battles such as Shiloh, Antietam, Stones River, and Gettysburg shocked citizens and international observers alike. Nearly as many men died in captivity during the Civil War as were killed in the whole of the Vietnam War. Hundreds of thousands died of disease. Roughly 2% of the population, an estimated 620,000 men, lost their lives in the line of duty. Taken as a percentage of today's population, the toll would have risen as high as 6 million souls.