Mother Teresa won the Nobel Prize for Peace in

Option B is correct. Mother Teresa won the Nobel Peace Prize in 1979.

Option C is incorrect. Mother Teresa did not win the Nobel Peace Prize in 1988. In that year, the prize was awarded to the United Nations Peacekeeping Forces.

Option D is incorrect. Mother Teresa did not win the Nobel Peace Prize in 1954. In that year, the prize was awarded to Albert Schweitzer, a German physician, theologian, musician, and philosopher.