Papyrus was a paper-like material made out of a.. the stalk of the papyrus plant. c.. the leaves of the papyrus plant. b.. the pith of the papyrus plant. d.. none of the above.

The correct answer would be the pith of the papyrus plant; it is option B. Papyrus was a paper-like material made out of the pith of the papyrus plant, Cyperus Papyrus. Papyrus is first known to be used in ancient Egypt as this plant grew abundantly along the Nile River in Egypt. 

Papyrus was a paper like material made out of the pith of the papyrus plant. The abundance of this plant beside the Nile river led to its use in Egypt. The correct option among all the options that are given in the question is option "b". I hope that the answer has come to your help.