Examine the following code:

#$!/$bin$/$csh

set recipeDevice$=$$$1$

set programName$=$$$2$

set lot$=$$$3$

set operator$=$$$4$

set LOGFILE$="$$LOGS$/$startkeithley$.$log$"$

echo $"*********`$date$`**********">>$$LOGFILE

echo $"`$date$`$: recipeDevice, programName, lot, operator" $>>$$LOGFILE

echo $"`$date$`$: $recipeDevice, $programName, $lot, $operator" $>>$$LOGFILE

Based on the above shell script code, what does the $$1$ signify?

The second argument passed to the script.

The first argument passed to the script.

The third argument passed to the script.

The script is null.

The variables are unclear.