Concept:Authorized share capital is the total value of shares a company is legally allowed to issue.Explanation:It is calculated by multiplying the number of authorized shares by the nominal value per share.Number of authorized ordinary shares =40,000,000Nominal value per share =N4Authorized share capital =40,000,000×4=N160,000,000The issued shares of 25,000,000 are not used for this calculation.Answer:A. N160,000,000