Which of the following is not an example of complex survey sampling?

Which of the following techniques did Spain attempt to use initially to establish themselves permanently in Texas?

a. setting up a mission system b. forming alliances with the native Indian tribes and the Mexican government c. fostering enmity among the native Texans and the Anglos d. dividing Texas into five separate parts and treating each part differently

The United States, generally, paid little attention to the plight of poor, inner-city whites until a series of riots took place in the late 1960s

Indicate whether this statement is true or false.