Click the outputs in the truth table (cycle 0, 1, X for don't-care) and get the minimized sum-of-products and the matching K-map. Minimized with Quine-McCluskey.
A primed letter means that input is 0 (so A' is "A is low"). The result is a sum (OR) of products (AND). Don't-care entries are used wherever they make the expression simpler.