At the end of a business conference the 8 people present all shake hands with each other once. How many handshakes will there be altogether ?  Choose the correct choice:  A) 20  B) 28  C) 55  D) 90  E) 95
number of handshakes = 8C2= 8*7/2= 
<gadget id="calculator">8*7/2</gadget>
<output>28</output>
28   ANSWER:28
<result>B</result>
At the end of a business conference the 8 people present all shake hands with each other once. How many handshakes will there be altogether ?