Find out that word, the spelling of which is wrong.

Paleolitic
Porcelain
Preliminary
Pedestrian

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”.