Answer: In group ,not asked to provide their names and addresses
Step-by-step explanation:
According to the question, research was conducted by researcher on children and adults who dress-up in Halloween times to go house to house asking for treats.These treats can be in the form of candy or money as per different places.
As the research was over,result received depicted that if children came more in group form then it is more likely for them to receive more treats due to unity and performance.They can also gain more candies if address and names were not asked from them because they will be free to go to anybody's house for treat.