Theology Homeowrk!! 2 questions that i need answered in a few hours!!!

1.why do some theologians refer to Judaism, Christianity, and Islam as forms of Abrahamic Monotheism? How are they related to eachother?

2. what is the offical position of the catholic church since the second vatican council with regard to the other world religions?(You should mention concepts such as the search for ultimate meaning, "scattered seeds of the Logos" and "fullness of truth in Christ" Why does the catholic church assert that its relationship with Judaism is unique?)