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+1 ?
Choose the correct choice from the following answers
A) -2
B) 2
C) -5
D) -3
E) -4
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+1= 
<gadget id="calculator">1+1</gadget>
<output>2</output>
2   Answer :2
<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+1 ?