The Global Exception Handler is a type of workflow that determines the project's behavior when encountering an execution error. It has two arguments that are provided by default and should not be removed.
They are:
errorinfo: This argument has the "In" direction and it stores information about the error that was thrown and the workflow that failed. It can be used to log the error details, get the name of the activity that caused the error, or count the number of retries1.
result: This argument has the "Out" direction and it is used to specify the next action of the process when it encounters an error. It can have one of the following values: Continue, Ignore, Retry, or Abort. These values determine whether the exception is re-thrown, ignored, retried, or stops the execution1.
The other options are not correct, because they either have the wrong direction for the arguments, or they use the "In/Out" direction, which is not valid for the Global Exception Handler arguments1.
References:
1: Studio - Global Exception Handler - UiPath Documentation Portal