Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

a. Access to nature has been shown to promote physical well-being by encouraging outdoor activities like walking, jogging, and playing sports.
b. Moreover, green spaces play a crucial role in improving air quality. Plants absorb carbon dioxide and filter pollutants, making the air healthier for residents.
c. They provide places for relaxation and recreation, helping to reduce stress and improve mental health.
d. Urban green spaces, including parks, gardens, and green roofs, are essential for enhancing the quality of life in cities.
e. In conclusion, urban green spaces are vital components of sustainable cities. Investing in and maintaining these areas leads to healthier communities and a better environment for all, making them indispensable in urban planning.