I believe the answer is b
If this is a True or False question, then its false. Hope this helps! :)
Answer:
The lungs are separated by the mediastinum. - c.
A lymphatic organ that helps develop the immune system is the thymus gland. The main function of this soft, roughly triangular organ is training and development of T-lymphocytes or T cells, an extremely important type of white blood cell which defend the body from potentially deadly pathogens such as bacteria, viruses, and fungi. Correct answer: B
