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 sequence of segments that forms a coherent statement, we can analyze the grammatical and logical connections between the parts:

1. Identifying the Subject and Opening: Segment C, "encouraging the use of bicycles in cities", functions as the gerund phrase starting the sentence, serving as the subject.
2. Finding the Verb/Predicate: Segment E, "is a sustainable approach,", logically follows C, providing the verb "is" and a description of the action. This gives us "encouraging the use of bicycles in cities is a sustainable approach," (C-E).
3. Adding Relative Clauses: Segment A begins with the relative pronoun "which", referring back to "a sustainable approach". Thus, "which can contribute to reducing urban congestion" naturally attaches to E. This gives us the sequence C-E-A.
4. Connecting Benefits: Segment D adds another benefit, "while also lowering pollution levels significantly", which complements the benefit of reducing urban congestion mentioned in A. This extends the sequence to C-E-A-D.
5. Concluding the List of Benefits: Segment B, "and promote healthier lifestyles", links to "reducing" and "lowering" (with the parallel structure of contributing to healthier lifestyle promotions). Connecting this gives us C-E-A-D-B.

Putting it all together, the coherent sentence is:
"Encouraging the use of bicycles in cities (C) is a sustainable approach, (E) which can contribute to reducing urban congestion (A) while also lowering pollution levels significantly (D) and promote healthier lifestyles (B)."

Therefore, the correct sequence is CEADB.