Hitler had continually but unsuccessfully urged the Japanese to attack the British colony of Singapore or to attack Siberia to divert Soviet troops away from Europe

How do surveys impose some constraints on participants?

A) by making the participants "blind" to the purpose of the questions B) by setting time limits for the questionnaire C) by using a specific survey instrument D) by giving an impression of the answers sought to the respondent

Which of the following treaties ended the Mexican-American War, recognizing Mexico's loss of Texas and other territories to the United States?

A. Treaty of Cahuenga B. Treaty of Córdoba C. Treaty of Mignano D. Treaty of Guadalupe Hidalgo E. Treaty of Phoenice