投资性房地产由成本模式转为公允价值模式的，应当将计量模式变更时公允价值大于账面价值的差额，计入“资本公积一其他资本公积”。（）

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

(c) ostensible/apparent authority. (4 marks)