Which Is the Correct Breakdown and Translation of the Medical

Which is the correct breakdown and translation of the medical term craniosynostosis?

A) cranio (brain) + syn (against) + ost (bone) + osis (condition) = condition where the brain is against the bone
B) cranio (brain) + syn (together) + ost (bone) + osis (condition) = condition where the brain has fused into part of the skull
C) cranio (cerebellum) + syn (against) + ost (bone) + osis (condition) = condition where the cerebellum is against the skull
D) cranio (skull) + syn (against) + ost (bone) + osis (condition) = inability of skull bones to fuse together
E) cranio (skull) + syn (together) + ost (bone) + osis (condition) = premature fusing of the skull bones