Rollerbeam Inc., a provider of engineering services, is looking to hire several maintenance engineers. Rollerbeam's HR department checks with the company's engineering department to confirm that the scenarios mentioned in the test are plausible real-world scenarios that maintenance engineers might face. Which of the following types of validation is Rollerbeam's HR team performing? Concurrent validation Criterion-related validation Content validation Subjective validation Predictive validation?

Aproperty title search firm is contemplating using online software to increase its search productivity. currently an average of 40 minutes is needed to do a title search. the researcher cost is $2 per minute. clients are charged a fee of $400. company a's software would reduce the average search time by 10 minutes, at a cost of $3.50 per search. company b's software would reduce the average search time by 12 minutes at a cost of $3.60 per search. which option would have the higher productivity in terms of revenue per dollar of input?