Which of the following statements about operating system monitors versus program analyzers is most likely to be true?

a. Operating system monitors are more likely to be sampling-based monitors than program analyzers

b. The domain of operating system monitors is more likely to be smaller than program analyzers

c. Operating system monitors are more likely to use run-time instrumentation than program analyzers

d. Users are likely to have less control over the data collected by an operating system monitor compared to a program analyzer