Question

an unbreakable code
it was autumn 1918, and world war i (1914 - 1918) had been grinding on for four years. amid the allied and the central powers hard - fought battles and countless defeats, and the loss of life and staggering conditions, and the mud and muck of the allied trenches, solomon lewis, james edwards, and ben carterby were conversing in a language that was unfamiliar to most of the soldiers around them - choctaw. though the united states government had attempted to silence native languages, these men, together with other members of the choctaw nation, would use their voices and their language to help end the war and establish a blueprint for future code talkers.
understanding the context
the people of the choctaw nation had traditionally lived in what is now the southeastern united states. however, in 1830, the u.s. government passed an act that led to their forced removal of many indigenous people living east of the mississippi river from their traditional homelands. the choctaw nation was included in this act. their removal to reservations west of the river was a harrowing journey that took decades to complete.
question 2
what cause - and - effect relationship is described in this article?
a. because the german military intercepted messages in the choctaw language, the germans decided to implement their own military code.
b. because choctaw was so important to the war effort, the u.s. government ended the ban on native languages.
c. because the choctaw code was intercepted by the central powers, the u.s. army stopped sending messages by telephone.
d. because german intelligence officials could not interpret the choctaw code, the german military position in france was weakened.

Explanation:

El artículo habla de cómo el código basado en el idioma choctaw utilizado por los Estados Unidos en la Primera Guerra Mundial era ininteligible para la inteligencia alemana. Los alemanes no podían interpretar los mensajes interceptados, lo que afectó su posición militar.

Answer:

D. Because German intelligence officials could not interpret the Choctaw code, the German military position in France was weakened.