Answer: Option a: tempera
Explanation: In the image, we can see an egg yolk and some red pigment.
With these things, you may do tempera, which is a combination of colored pigments mixed with water-soluble blinder medium, usually egg yolk.
Tempera is a fast-drying painting medium that usually lasts for long periods of time, that was used until 1500 when the oil paintings superseded it.
