If a, b, and c are consecutive odd positive integers and a < b < c, which of the following could be equal to c - b - a+2 ?
Choose one:
A) -1
B) 3
C) -4
D) -1/2
E) -1/3
let we put values. a=1, b=3, c=5   5-3-1= 
<gadget id="calculator">5-3-1</gadget>
<output>1</output>
1   1+2= 
<gadget id="calculator">1+2</gadget>
<output>3</output>
3   Answer :3
<result>B</result>
If a, b, and c are consecutive odd positive integers and a < b < c, which of the following could be equal to c - b - a+2 ?