Which among the following is not correct about Golgi apparatus?

• A. They are absent in RBCs, sperm cell of Pteridophytes and Bryophytes
• B. Golgi apparatus is freely distributed in animal cells and in plants fluid filled sac like structures called cisternae that pile parallel to each other to form Golgi bodies
• C. There are three main components, namely, cisternae, tubules and vesicles
• D. The membrane bound containers which appear dense in the cytoplasm are called vesicles