According to the United Nations treaty on refugees, which of the following statements is true?

According to the United Nations treaty on refugees, which of the following statements is true?
 
  a. Countries are obliged to deport refugees who left their country for political reasons.
  b. Countries are obliged to refrain from forcibly returning people to territories where their lives might be endangered.
  c. Countries are obliged to forcibly return people to territories where their liberty might be endangered.
  d. Countries are obliged to deport refugees who left their country for religious reasons.

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Typically, ________ is taken by Muslims to refer to their internal struggle for spiritual purity.
 
  a. hijab
  b. hajj
  c. jihad
  d. sunnah