Answer:
The correct answer is number 1. By creating a contrast between the past and present of West Berlin, the speaker emphasizes his viewpoint.
Explanation:
In the passage we are analyzing here, the speaker is conveying the idea that West Berlin has risen from the ashes, going from a destroyed post-War city to a rebuilt and thriving place. To do so, the speaker uses parallelism when comparing the past and the present -- "where..., today..." -- as well as examples that support his point -- office blocks, fine homes, universities, orchestras etc. By contrasting both stages, past and present, of Berlin with parallelism, the speaker emphasizes his point of view.