Cem: Our neighbourhood is getting safer. We installed new street lights last month and the number of thefts decreased. Derya: Yes, and the new neighbourhood watch group is very active. They patrol every night. Cem: Also, the speed bumps on the main street made drivers slow down. Derya: But I still think we need a crossing guard near the primary school.
According to the dialogue, which of the following is true?
A)The speed bumps caused more accidents.
B)The neighbourhood watch group patrols during the day.
C)A crossing guard is needed near the school.
D)The number of thefts increased after the street lights were installed.