For each fixed value of selector {a,b}, use the K-map to derive a function of c,d for the corresponding mux data input. No other logic gates are allowed in the intended implementation.
| cd \ ab | 00 | 01 | 11 | 10 |
|---|---|---|---|---|
| 00 | 0 | 0 | 0 | 1 |
| 01 | 1 | 0 | 0 | 0 |
| 11 | 1 | 0 | 1 | 0 |
| 10 | 1 | 0 | 0 | 1 |
