5. Convert the following ladder logic into a Karnaugh map and do the simplification at your best. A B A X ☑ D 6. (a) Construct a truth table for the following problem. i) there are three buttons A, B, C. ii) the output is on if any two buttons are pushed. iii) if C is pressed the output will always turn on. (b) Develop a Boolean expression. (c) Develop a Boolean expression using a Karnaugh map.