Which of the following is true of the Afonso Arinos law?

Which of the following is true of the Afonso Arinos law?
 
  a. The law was unanimously adopted.
  b. The law prohibited physical abuse in public.
  c. The law was useful in overturning even the subtle forms of discrimination.
  d. The law came into existence after a push from South Africa.

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Which of the following statements is true of LaPiere's study?
 
  a. The respondents to the questionnaires in LaPiere's study held strong prejudiced beliefs and were willing to act based on those asserted beliefs.
  b. The results of LaPiere's study showed that Whites were extremely prejudiced toward the Chinese.
  c. A flaw of LaPiere's study was that even though LaPiere accompanied the couple, the questionnaires suggested that the guests would be unescorted.
  d. A merit of LaPiere's study was that it used a standard scale to ascertain that the respondents to the questionnaires were the people who had served LaPiere and the Chinese couple.