Select the option that can be used as a one-word substitute for the given group of words.

Drawings or writing scribbled on walls in public places

Graffiti

The correct option is graffiti. It means "drawings or writing scribbled on walls in public places." The other options are not correct substitutes.

• Posters are large sheets of paper or cloth with printed or written matter, used for advertising or propaganda.
• Sketches are quick, rough drawings that are often used as preliminary studies for more finished works.
• Hoardings are large outdoor advertising panels.