The correct answer is D. Thyroid.
The thyroid is a butterfly-shaped gland located in the front of the neck, just below the Adam’s apple. It produces hormones that regulate metabolism, growth, and development. The thyroid is one of the most important glands in the body, and its function is essential for good health.
The pancreas is a gland located in the abdomen, behind the stomach. It produces digestive enzymes and hormones that help regulate blood sugar levels. The liver is a large organ located in the upper right abdomen. It performs many important functions, including filtering toxins from the blood, producing bile, and storing energy. The adrenal glands are two small glands located on top of the kidneys. They produce hormones that help regulate the body’s response to stress.
The thyroid is the only gland listed that is located close to the trachea. The pancreas, liver, and adrenal glands are all located in different parts of the body.