A global 1D array of strings contains three elements which are assigned values as shown: Data[1] ← "aaaaaa" Data[2] ← "bbbbbb" Data[3] ← "cccccc" Procedure Process() manipulates the values in the array. The procedure is written in pseudocode as follows: PROCEDURE Process (Format : STRING) DECLARE Count, Index, L : INTEGER DECLARE Result : STRING DECLARE C : CHAR Result ← "****" FOR Count ← 1 TO LENGTH(Format) STEP 2 C ← MID(Format, Count, 1) L ← STR_TO_NUM(MID(Format, Count + 1, 1)) Index ← (Count + 1) DIV 2 CASE OF C 'X' : Result ← TO_UPPER(Data[Index]) 'Y' : Result ← TO_LOWER(Data[Index]) 'Z' : Result ← "**" & Data[Index] ENDCASE Data[Index] ← LEFT(Result, L) NEXT Count ENDPROCEDURE

1. (a)Complete the trace table by dry running the procedure when it is called as follows: CALL Process("X3Y2W4") Count C L Index Result Data[1] Data[2] Data[3][6]
2. (b)(i)The procedure is to be modified. If variable c is assigned a value other than 'x', 'Y' or 'Z', then procedure Error() is called and passed the value of variable c as a parameter. This modification can be implemented by adding a single line of pseudocode. (i) Write the single line of pseudocode.[1]
3. (b)(ii)(ii) State where this new line should be placed.[1]