An girr online herre m soo bored

"urban sprawl, the spreading of large developments of housing and shopping areas around a city’s center, has many negative cultural and environmental effects. " (from your link)

so, your answer is: it has a negative effect on the environment, otherwise known as c~hope this mate. 

the correct answer is: a) every day, the children play and swim in the lake.

explanation: the topic is about the children playing and swimming everyday in the lake, the rest of the sentence is only a positive description of the outcome of such events.