Answer:
A busy market place is full of people and is always bustling with activity. There are the different sellers who are part of the crowd and they are trying to entice the buyers to buy their products. The customers in the market are trying to negotiate the prices to their advantage
C is the answer , breathing problems and air pollution relate
That sentence is an example of parallel structure.
When there is repetition of a specific grammatical form in a sentence, parallelism or a parallel structure is produced. This occurs when you mantain the same pattern for every compared word or idea in your construction. This makes the idea easier to follow by the reader.
