B should be the answer (its more logical).
Logic :-
Otherwise Its probably not the Huffman encoding alone (this surely is not being asked in the question.
Due to some reasons a “1” is concatenated to the end of the string of actual path to the leaf node.
A=”0” + “1 “ =01
B=”110” + “1” = 1101
C=”100” + “1”= 1001
D = “101” + “1” =1011
E = ”111” + “1” = 1111
A,C,D could be are the matching options but question has not mentioned any such thing about concatenation so B should be the right answer.