In general, the node content in a threaded binary tree is ________
(a) leftchild_pointer, left_tag, data, right_tag, rightchild_pointer
(b) leftchild_pointer, left_tag
(c) leftchild_pointer, left_tag, right_tag, rightchild_pointer
(d) leftchild_pointer, left_tag, data
Question is taken from Threaded Binary Tree in portion Binary Trees of Data Structures & Algorithms I
This question was addressed to me in homework.