It is D because I’m smart and you should trust me!!
True, textbooks are a primary source. (P.S We are learning about primary and secondary sources in social studies and I got the same question)
Answer:
Explanation:
Chinampas. Aztec agriculture in the heart of the empire used chinampas for their crops. Chinampa is a method of farming that used small, rectangular areas to grow crops on the shallow lake beds in the Mexican valley. Chinampas were essentially artificial islands created for the crops.
If I am correct it must be A: They left many records.
