In usual marine applications, bellows joints are designed and fitted to accommodate straight line axial movement only and the associated piping requires adequate anchors and guides to prevent misalignmentAccording to the above sentence, which of the following statements is true?（）

A. The marine bellows joints are attached in the accommodation only
B. The bellows joints should be attached to anchors
C. The associated piping should be thrown into the water like as anchors
D. The connecting piping with the joints should be fixed firmly