The Variance of Y_i Is Given by
A) $\beta _ { 0 } ^ { 2 }$

Multiple Choice

The variance of Y_i is given by

A) $\beta _ { 0 } ^ { 2 }$ + $\beta _ { 1 } ^ { 2 }$ var(X_i) + var(u_i) .
B) the variance of u_i.
C) $\beta _ { 1 } ^ { 2 }$ var(X_i) + var(u_i) .
D) the variance of the residuals.