Construct the function F(a,b,c,d) = (0, 1, 4, 5, 7, 9, 10, 13):

Using 3x8 decoders and basic logic gates

Using 3x8 decoders and 2x4 decoders (you need to use both in the same circuit)

Using only 2x4 decoders

Your circuit must be efficient, which means you need to use the least amount of components.