The correct answer is D. Pedestrian. The correct spelling is "pedestrian".
A. Paleolitic is the correct spelling of the word "Paleolithic". It is a period of human prehistory distinguished by the earliest known use of stone tools.
B. Porcelain is the correct spelling of the word "porcelain". It is a type of ceramic that is made from kaolin, feldspar, and quartz.
C. Preliminary is the correct spelling of the word "preliminary". It means "coming before the main event or action".
