Certified Breastfeeding Counselor (CBC) Practice Exam 2025 - Free CBC Practice Questions and Study Guide

The breast tissue is surrounded by fat tissue, as it acts to support, cushion, and protect the breast tissue. Myoepithelial cells are found beneath the breast tissue and help with milk expression during breastfeeding. Nerve tissue is also present in the breast, but it is not what immediately surrounds the breast tissue. Muscle fibers can be found in the chest wall and under the breast, but they do not directly surround the breast tissue. Therefore, the most accurate answer is C) Fat.