Which of the following statement is true? (Points : 3.5)

a. "Yankee" stock offerings are U.S. stocks held abroad. b. American Depository Receipts (ADRs) are denominated in multiple currencies, trade on U.S. exchanges, and can be bought through any broker. c. The expected large demand for new capital by Mexican companies following the implementation of NAFTA fueled the sale of "Yankee" stock offerings. d. The main advantage of ADRs over (Global Registered Shares (GRSs) is that all shareholders have equal status and direct voting rights.