Read the following article and answer the question. Article: Paper was first made in the year 105. It was made by a Chinese named Cai Lun. People in Japan learned of paper around the year 600. As years went by, people in other places began to make paper. The lead pencil is not made of lead. It is made of graphite . People found graphite in 1564. They thought it was a kind of lead. Today we still call pencils "lead pencils". The first pencils were made by putting strings around sticks of graphite. The first wooden pencils were made by Kasper Faber from Germany in 1761. Erasers like those we use today were first made in France by a man named Magellan in 1752. It was Hyman L. Lipman who first put eraser on the ends of pencils. And that is how the pencils come to be. Question: At first pencils were made of _ . Answer:

Possible answers:
(a). wood.
(b). Lead.
(c). sticks.
(d). string and graphite.
The answer is:
(d).