Frank, a medicine scientist, needs an expert system to arrive at conclusions. Which component of an expert system uses domain knowledge on medicine to arrive at conclusions?

At an open or uncontrolled intersection, yield if a. the cross road has more lanes than yours b. the cross road has fewer land than yours c. you’re on a state highway and the cross road is a secondary road d. do you have three or more passengers in your vehicle

Which are steps taken to diagnose a computer problem? a) reproducing the problem and using error codes b) reproducing the problem and troubleshooting c) using error codes and troubleshooting d) using error codes and stepping functions

Which cultural aspect does this type of song best portray? a german polka dance