The macromolecules are defined as large molecules like lipids, proteins, and carbohydrates.
In the given data, the red color denotes hydrogen and black denotes carbon. The molecule that needs the majority of red and black color is carbohydrates.
Carbohydrates can be explained as:
Thus, the correct answer is Option A.
To know more about carbohydrates, refer to the following link:
https://brainly.com/question/16987478