This is physics logic gates. The output should be equivalent to 1, 0, 0, 0.

AND OR XOR A B Output B Output A B Output 0 0 0 O 1 0 0 1 1 1 0 0 1 1 1 1 1 NAND NOR XNOR A B Output A B Output A B Output 1 1 1 1 1 0 1 0 0 1Input Output b 0 C O O