Given the true model: Y = Bo + BI * X1 + B2 * X2 + u and our estimating model: Y = Bo + Bi * X + u for which of the following conditions would , not equal BI O B2 = -2, cov(X1,X2) = 0 O B2 = 0, cov(X1,X2) = 1 O B2 = 0, cov(X1,X2) = 0 O B2 = -2, cov(X1,X2) = 1