Suppose `E_1, E_2 and E_3` be three mutually exclusive events such that `P(E_i)=p_i" for "i=1, 2, 3`.
`P(E_1capoverline(E_2))+P(E_2capoverline(E_3))+P(E_3capoverline(E_1))` equals
A. `p_1(1-p_2)+p_2(1-P_3)+p_3(1-p_1)`
B. `p_1p_2+p_2p_3+p_3p_1`
C. 0
D. None of these