Which of the following is false?

Select one:

a. Under US GAAP, companies cannot record gains on transaction involving their own shares.

b. Under IFRS, companies cannot records gains on transactions involving their own shares.

c. Under IFRS, the statement of stockholders' equity is a required statement.

d. Under IFRS, a company records a revaluation surplus when it experiences an increase in the price of its common stock.