Morgan Construction has 4 Senior Managing Directors and 4 Managing Directors. Each investment banking deal requires the guidance of three managing directors, at least one of which must be a Senior Managing Director. How many possible investment banking deals can Morgan Constuction possibly provide guidance for?	Pick.
A) 16  B) 36  C) 52  D) 54  E) 64
P(at least 1 S D) = P(Total) - P(0 Senior Director)   =8523 - 4523   = 52
<result>C</result>
Morgan Construction has 4 Senior Managing Directors and 4 Managing Directors. Each investment banking deal requires the guidance of three managing directors, at least one of which must be a Senior Managing Director. How many possible investment banking deals can Morgan Constuction possibly provide guidance for?