Final answer:
Maize (B) is known for its high nutritional value and is a staple in many diets due to its versatility and use in various products, from sweet corn to corn syrup and animal feed.
Step-by-step explanation:
The crop known for its high nutritional value and considered a staple in many diets is B) Maize. Maize, also known as corn in the US, was domesticated by the indigenous people of Mexico thousands of years ago and is known for its adaptability to various climates. Maize is a versatile crop, with production ranging from sweet corn consumed directly to field corn used in an array of products such as cornmeal, cornstarch, and high fructose corn syrup (HFCS).
While sweet potatoes, tomatoes, and avocados also have nutritional benefits, maize stands out as a global staple providing a significant percentage of the calories consumed by people worldwide. Additionally, maize, along with crops such as potatoes and sweet potatoes, played a crucial role in varying diets and fueling technological advancements following the Columbian Exchange.