Four phrases/sentences have been removed from the text below. For each question, mark the letter A, B, C, or D on your answer sheet to indicate the correct option that best fits each of the numbered b

The Challenges of Urbanization
Urbanization is a process where people move from rural areas to cities in search of better living standards and job opportunities. ___(1)___. It has led to the growth of many cities around the world. However, urbanization also brings many challenges, including increased pollution and traffic congestion.
One major issue associated with urbanization is the lack of affordable housing. ___(2)___. As more people move to cities, the demand for housing increases, which often drives up prices.
Urbanization also has environmental impacts, such as the loss of green spaces. ___(3)___. Many cities are struggling to balance development with the need to preserve nature.
To address these challenges, governments and city planners need to find sustainable solutions. ___(4)___. Initiatives such as public transportation and green building designs can help make cities more livable.

A. Rapid population growth is a significant factor in urbanization.
B. This can make it difficult for low-income families to find suitable places to live.
C. Urban planning must prioritize sustainability to ensure a better quality of life.
D. Parks and natural areas are often replaced by buildings and roads.