The diet of south americans is largely based on what staple

The diet of South Americans were largely based on staple food such as rice, corn (maize), and wheat. Almost always, there food consists of such food combined with animal products such as meat, fish, and dairy.

Some other food produces that they consume include tubers like potatoes, cassavas, and yams. This is because their land in that are is very conducive from crops that are growing all-year round. 

“d” is the answer to the question

The fetus at this stage is curled up, almost doubled over, so remember to consider this as you draw the fetus the correct length