Which technique involves painting on a freshly plastered wall and was popular during the Greek, Roman, Medieval, and Renaissance periods? A. Tempera B. Watercolor C. Fresco.

C

Explanation:

Fresco - a painting done rapidly in watercolor on wet plaster on a wall or ceiling, so that the colors penetrate the plaster and become fixed as it dries.

all of them except "c"

i think this is true