C, to emphasize their generosity. But it is also ironic because magi means wise men and their gifts were not very wise.
According to Nancy Duarte's TedX Talk, every presentation should end with a call to action. The world must be described as a new bliss by showing the audience why they should adopt or accept your ideas. It is important because the presentation will be effective, impactful and well-remembered if it was ended in a poetic and dramatic way.
I think it's option A, or number 2
