Rose's Friend Is Getting Married, So She's Been Put in Charge

Rose's friend is getting married, so she's been put in charge of collecting money from all of their friends and buying a nice gift for the couple. Rose is running into difficulty, as her friends can't agree on an amount to give, and some don't want to give as much as others. The friends also continue to debate about which type of gift is most appropriate, a humorous one or a sentimental one. For the group's effort to be successful, Rose should find an effective way to deal with the group's

A) conflict.
B) diversity.
C) synergy.
D) opinions.