Durinh electrlysis of an aqueous solution of `CuSO_(4)` using copper electrodes, if `2.5g` of `Cu` is deposited at cathode, tehn at anode
A. 890 mL of `O_(2)` at STP is liberated
B. 445 mL of `O_(2)` at STP is liberated
C. 445 mL of `O_(2)` at STP is liberated
D. 2.5 g of copper is deposited