This question is incomplete, here´s the complete question.
Which best explains the successful development of agriculture in the desert climate of the American Southwest by American Indian cultures such as the Pima, Hopi, and Hohokam?
a) People of the Southwest were instructed in cultivating drought-tolerant crops by traders from civilizations in present-day Mexico.
b) People of the Southwest developed systems of canals to divert water from nearby rivers to irrigate their crops.
c) People of the Southwest developed a seasonal calendar that allowed them to predict the best times of year to plant and harvest.
d) People of the Southwest primarily cultivated drought-resistant grasses for animal feed and subsisted on meat from livestock.
Answer: b) People of the Southwest developed systems of canals to divert water from nearby rivers to irrigate their crops.
Explanation:
The Hopi were part of the western Pueblo tribes, while the Hohokam were the ancestors of the Pima and Tohono O’odham, and were located in the western and southern limits.
Their developments in agriculture required access to rivers, smaller streams, and seasonal waterways, so they built stone canals to irrigate their fields.
The answer is C, coincidentally. A wouldn't be correct because similarly is when the other group agrees. Here, two groups are disagreeing. B would fit but it would not be the most logically connected word. C means when one group agrees on something but the other group disagrees more with the decision. D would fit but it would not because there is no direct contrast. Some teachers believe that school should start later in the year and parents believe that school starts earlier in the year. Therefore it can be concluded that C is the best-fit word to be placed in the blank.
The people of africa did idk really tho I guessed