A certain company consists of 4 managers and 8 non-managers. How many different teams of 3 employees can be formed in which at least one member of the team is a manager and at least one member of the team is not a manager? (Two groups are considered different if at least one group member is different)	Choose the correct answer.
A) 84
B) 108
C) 160
D) 270
E) 990
Total # of teams of 3 possible is 12C3=220   # of teams with only managers or only non-managers is: 4C3+8C3=4+56= 
<gadget id="calculator">4+56</gadget>
<output>60</output>
60;   # of teams of 3 with at least one manager or at least one non-manager is: 220-60= 
<gadget id="calculator">220-60</gadget>
<output>160</output>
160.   ANSWER:160
<result>C</result>
A certain company consists of 4 managers and 8 non-managers. How many different teams of 3 employees can be formed in which at least one member of the team is a manager and at least one member of the team is not a manager? (Two groups are considered different if at least one group member is different)