Question: What does the following Unix command do ps - ef I grep find This command has an invalid syntax and will generate an error Sends

What does the following Unix command do
ps -ef I grep find
This command has an invalid syntax and will generate an error
Sends the output of the ps command as an input to the find command
Searches the results of the ps command to find the lines that contain the word grep
Filters the output of the ps command to extract the lines that contain the word find
What does the following Unix command do ps - ef I

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