What part of the grain is bran and what is it rich in?

Bran is the outer layer of a grain and is known for being rich in fiber. This fibrous layer serves as a protective coating for the seed, and its high fiber content contributes to digestive health, helps regulate blood sugar levels, and promotes satiety. Additionally, bran contains essential nutrients, including B vitamins, minerals, and antioxidants, making it a valuable part of the grain. The other options do not accurately describe the characteristics and benefits of bran in relation to its position within the grain or its nutritional content.