Beginning in 1991, Native American Tribes in Texas Were Allowed

Beginning in 1991, Native American tribes in Texas were allowed to open casinos for the first time because

A) the United States Supreme Court issued a court order.
B) Congress passed the Indian betting Act of 1991.
C) The Texas Legislature elected the first Native American speaker of the Texas House of Representatives.
D) The Texas Constitution was amended to allow some forms of gambling.
E) Jack Abramoff sued the state.