2 people meet for a business lunch. Each person shakes hands once with each other person present. How many handshakes take place? Options:  A) 1  B) 2  C) 5  D) 0  E) 4
the formula to count handshakes is n(n−1)2n(n−1)2   Where n is the number of people   =&gt; 2(2-1)/2 = 2*1/2 = 2/2= 
<gadget id="calculator">2/2</gadget>
<output>1</output>
1=&gt; the answer is 1(1)
<result>A</result>
2 people meet for a business lunch. Each person shakes hands once with each other person present. How many handshakes take place?