Beginning in 1991, China loosened its adoption laws in order to ________.

Beginning in 1991, China loosened its adoption laws in order to ________.
 
  a. help ease the immigration of Chinese children born of one non-Chinese parent to the United States
  b. improve the country's ties with the United States
  c. address the growing number of children abandoned under the country's one-child policy
  d. encourage Chinese couples to adopt more children, particularly girls, abandoned by the poor

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________ refers to families in which one or more is a citizen and one or more is a noncitizen.
 
  Fill in the blanks with correct word