Which of the following productions eliminate left recursion in the productions given below
$$S\rightarrow Aa\mid b$$
$$A\rightarrow Ac\mid Sd\mid ε$$

A

$$S\rightarrow Aa\mid b, A\rightarrow bdA', A'\rightarrow A'c\mid A'ba \mid A \mid ε$$

B

$$S\rightarrow Aa\mid b, A\rightarrow A'\mid bdA', A'\rightarrow cA'\mid adA' \mid ε$$

C

$$S\rightarrow Aa\mid b, A\rightarrow A'c \mid A'd, A'\rightarrow bdA' \mid cA \mid ε$$

D

$$S\rightarrow Aa\mid b, A\rightarrow cA' \mid adA' \mid bdA', A'\rightarrow A \mid ε$$