Which of the followings are correct for OLS estimation in the presence of Heteroscedasticity ?
A. The estimated coefficients are linear
B. The estimated coefficients are unbiased
C. The estimated coefficients are biased
D. The estimated coefficients are consistent
E. The estimated coefficients are efficient.
Choose the correct answer from the options given below:
1
A and D only
2
A, B and D only
3
A, C and E only
4
A, C and D only