The correct option is B Cedar
Cedar was very important to the Egyptians. They used it for making boat. These boats were built of relatively short blocks of timber. It was very easy to reach the cities and towns by boat through Nile. It was cheap and quick. The necessary water power was provided by the current and the wind. People traveled through Nile with stone for projects or grain for the kings stores and merchants carried wares for sale. It was believed to be first used about 4000 B.C. and became Egypt's major exports.
Thus, the correct answer is option B.