Use the passage to answer the question.

“The chiefs looked to large stations, such as Quito, Tumebamba, Caxamarca, Xauxa, Vilcas, or Paria, and others of the same rank for orders. These stations were like the seat of a bishopric, or the capital of a kingdom, which gave the tone to all the parts, and whence came the officers who administered justice, or formed armies in case of war or insurrection. Nevertheless affairs of great difficulty or importance were not decided upon without a reference to the Kings Yncas. The transmission of these references was arranged with such skill and order, that the post went from Quito to Cuzco in eight days. Every half-league along the road there was a small house, where there were always two Indians with their wives. One of these ran with the news that had to be transmitted, and, before reaching the next house, he called it out to the other runner, who at once set off running the other half-league, and this is done with such swiftness that neither mules nor horses could go over such rocky ground in a shorter time.”
Based on the information in this primary source document, which means of administering the Inca Empire is Pedro de Cieza de Léon describing?

A. Quechua
B. chasquis
C. quipu
D. mit’a labor

B. chasquis