I believe the answer may be burgundy
Burgundy is created with brown, red and blue
To make brown you can mix red and green, yellow and purple and then by adding the blue and red it will most likely create burgundy
So D. Burgundy
Answer:
Cartography
Explanation:
Because maps would be useful, im not sure what kind of dependance you mean but if it was something in terms of a zombie appocalypse i would say maps of tunnels, or safe passageways