Recent Research on LMX Theory Has Revealed the Surprising Result

Recent research on LMX theory has revealed the surprising result that:

A) increased communication between the supervisor and in-group members tends to lead to lower performance ratings
B) decreased communication between the supervisor and out-group members tends to lead to higher performance ratings
C) there was not any difference between in-group or out-group members on performance ratings when the communication between the supervisor and in/out-group members increased
D) increased communication between the supervisor and out-group members leads to lower performance ratings