Question Refers to the Following Regression Estimated on 64 $\beta$

Multiple Choice

Question refers to the following regression estimated on 64 observations:
Y_t = $\beta$ ₁ + $\beta$ ₂X_2t + $\beta$ ₃X_3t + $\beta$ ₄X_4t + u_t
-Which of the following null hypotheses could we test using an F-test?
(I) $\beta$ ₂ = 0
(ii) $\beta$ ₂ = 1 and $\beta$ _{3 +} $\beta$ ₄ = 1
(iii) $\beta$ ₃ $\beta$ ₄ = 1
(iv) $\beta$ ₂ - $\beta$ ₃ - $\beta$ ₄ = 1

A) (i) and (ii) only
B) (ii) and (iv) only
C) (i) , (ii) , (iii) and (iv)
D) (i) , (ii) , and (iv) only