In an optical coupler:(i) \(splitting \ ratio=\frac{P_2}{(P_1+p_2 )}×100% \)(ii) \(splitting \ ratio=\frac{P_1}{P_2 }×100%\)(iii) \(Return \ loss=10 log\frac{⁡P_3}{P_0 }\)(iv) \( Return \ loss=10 log\frac{⁡P_3}{(P_1+P_2 )}\)Which of the above statements are correct?Choose the correct answer from the code given below:

In an optical coupler:(i) \(splitting \ ratio=\frac{P_2}{(P_1+p_2 )}�

1.	In an optical coupler:(i) \(splitting \ ratio=\frac{P_2}{(P_1+p_2 )}×100% \)(ii) \(splitting \ ratio=\frac{P_1}{P_2 }×100%\)(iii) \(Return \ loss=10 log\frac{⁡P_3}{P_0 }\)(iv) \( Return \ loss=10 log\frac{⁡P_3}{(P_1+P_2 )}\)Which of the above statements are correct?Choose the correct answer from the code given below:
A.	(ii) and (iii)
B.	(i) and (iv)
C.	(ii) and (iv)
D.	(i) and (iii)
Answer» E.