下列转移性骨肿瘤特点中，哪项是错的（）

A.脊柱转移最常见

B.同一原发灶，可兼有溶骨性、成骨性转移

C.可有软组织肿块或肿胀

D.膀胱癌多为成骨性转移

E.甲状腺癌转移者，局部骨可膨胀

Explain the meaning of the following terms with regard to the law of agency, providing specific examples within the context of company law:

(a) express authority; (3 marks)