Regarding bone remodelling, all are true except:
(a) Osteoclastic activity at the compression siteThus bone remodelling has both osteoclastic and osteoblastic activity at compression or tension side but the forces on bone decide where remodelling takes place compressile forces compression site and tensile forces tension site and in bone modelling there is osteoclastic activity at tension site and osteoblastic activity at compression site. Thus the best answer here will be (a) but this is with respect to modelling not remodelling.
Osteoclastic activity at the compression site
Osteoclastic activity at the tension site
Osteoclastic activity and osteoblastic activity are both needed for bone remodelling in cortical and cancellous bones
Osteoblasts transforms into osteocytes
Anatomy of Bone & Fracture Healing