In 1907, Edith Cavell, a British nurse, was appointed head nurse of the Berkendael Medical Institute in Belgium. In 1914, at the start of World War I and the German occupation of Belgium, Cavell joined the Red Cross to support the nursing effort. The Berkendael Institute was converted into a hospital for wounded soldiers of all nationalities. During this time, Cavell helped soldiers treated there to escape to neutral Holland. In 1915, she was arrested by local German authorities for abetting the escape of 200 soldiers and was sentenced to death. Cavell's case received significant press coverage around the world, especially in Britain and the United States. In the weeks after her death, the number of men enlisting to serve in World War I greatly increased. Which of the following context clues allows the reader to infer the meaning of the word "abetting" as used in the paragraph?
A. "the escape of 200 soldiers"
B. "was sentenced to death"
C. "was arrested by local German authorities"
D. "helped soldiers treated there escape"
Therefore, the Correct Answer is D.