AWK

Which of the following is true regarding the following script?

 1 BEGIN {} 2 { 3 for (i=1; i<=NF; i++) { 4 print $i 5 } 6 } 7 END {}

a.	The output will be a list of incrementing numbers; starting with 1

b.	Nothing will be printed; $i has not been defined

c.	Nothing will be printed; the middle script block is missing a pattern statement

d.	The contents of each field in each record will be outputted on a seperate line