In the given question, a statement divided into different segments is given. Rearrange all the segments to form a coherent statement. If no rearrangement is required select “No rearrangement required” as correct answer.

A: which can contribute to reducing urban congestion

B: and promote healthier lifestyles

C: encouraging the use of bicycles in cities

D: while also lowering pollution levels significantly

E: is a sustainable approach,

To find the correct order of the segments to form a coherent statement, let's analyze the grammatical and logical connections between each part:

1. Identify the starting segment:
Segment C ("encouraging the use of bicycles in cities") introduces the main subject of the sentence (a gerund phrase acting as the subject). This is a strong candidate for the beginning of the statement.

2. Connect to a verb or predicate:
The subject "encouraging the use of bicycles in cities" needs a verb. Segment E ("is a sustainable approach,") provides this verb ("is") and completes the main clause: "encouraging the use of bicycles in cities is a sustainable approach,".

3. Connect the relative clause:
The comma at the end of Segment E leads naturally into a relative clause explaining the benefits of this approach. Segment A ("which can contribute to reducing urban congestion") fits perfectly here, modifying "sustainable approach".

4. Add further benefits:
Segment D ("while also lowering pollution levels significantly") introduces an additional benefit that parallelizes with the action in Segment A (reducing congestion while also lowering pollution).

5. Link the final clause:
Segment B ("and promote healthier lifestyles") uses the coordinating conjunction "and" to connect to the previous verbs. Notice how the infinitive-like structure "reduce [congestion]... lower [pollution]... and promote [healthier lifestyles]" flows coherently to complete the sentence.

Combining these in order gives:
C: encouraging the use of bicycles in cities
E: is a sustainable approach,
A: which can contribute to reducing urban congestion
D: while also lowering pollution levels significantly
B: and promote healthier lifestyles

This forms the coherent statement: "encouraging the use of bicycles in cities is a sustainable approach, which can contribute to reducing urban congestion while also lowering pollution levels significantly and promote healthier lifestyles."

Therefore, the correct sequence is CEADB.