Cathy is planning a reception for her daughter's wedding. all of the family is invited, but not all of the family members get along particularly well. cathy must be careful not to seat certain family members together who might not care for each other. she knows that aunt amanda and aunt sally always feud about who makes the best apple pies. cousin larry and uncle robby always get into arguments about which football team is the best. robby grew up with sally and they have been close since they were kids, but aunt amanda and uncle robby are married with 4 kids. larry is not married and has no kids..what inference can you make about the relationship between robby and sally?