Wait, wait, wait... you're telling me there's an actual shell command that just prints the process ID of the current shell? That's the most useless thing I've ever heard! I'm going to go write a script that just returns the word 'banana' instead.
I'm going with C. The process ID of the last command executed seems like the most logical choice here. That's how I've seen this command used in the past.
I think the answer is B. The process ID for the following command makes the most sense to me. Why would we want the process ID of the echo command itself?
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