What data inputs to a 1 of 16 decoder cause output 13 to be LOW?

A₃=1 A₂=1 A₁=0 A₀=1.

Explanation:

Suppose the inputs to the decoder are A₃, A₂, A₁, A₀ with A₃ MSB (most significant bit) and A₀ LSB (Least Significant Bit) and assuming that the output of the decoder is inverted. So for the output 13 to be low the input should be A₃=1 A₂=1 A₁=0 A₀=1 with the Enable on.

For this decoder there will be 16 outputs form O₀ to O₁₅ and O₀ will be low when the input is 0000 and O₁₅ will be low when the input is 1111.