Context: Linda Woodhead attempts to provide a common belief thread for Christians by noting that "Whatever else they might disagree about, Christians are at least united in believing that Jesus has a unique significance." Philosopher Michael Martin, in his book The Case Against Christianity, evaluated three historical Christian creeds (the Apostles' Creed, the Nicene Creed and the Athanasian Creed) to establish a set of basic assumptions which include belief in theism, the historicity of Jesus, the Incarnation, salvation through faith in Jesus, and Jesus as an ethical role model.

Question: Who states that Christian believers agree that Jesus has a unique significance? 
Answer: Linda Woodhead

Question: Who wrote The Case Against Christianity?
Answer: Michael Martin

Question: How many historical Christian creeds did Martin write about?
Answer: three

Question: What do Christians believe is the way to salvation?
Answer: faith in Jesus

Question: What are the three creeds Martin studied?
Answer: the Apostles' Creed, the Nicene Creed and the Athanasian Creed

Question: According to Nicene Creed, what can Christians be united in believing?
Answer: Unanswerable

Question: Who do Christians believe has a unique insignificance? 
Answer: Unanswerable

Question: Who wrote The Case Against Creed?
Answer: Unanswerable

Question: Who is the author of The Apostles Creed?
Answer: Unanswerable

Question: Who is the author of The Nicene Creed?
Answer: Unanswerable