Consider the current values of BPEL variables InputVariableandOutputVariable: 

Then consider the following BPEL activity Assign1: <assign name="Assign1"> <!- - Line 1- -> <copy><!- - Line 2 - -> <from variable ="InputVariable"<!- - Line 3 - -> part = "query_Input" <!- - Line 4 - -> query="/ns2: query_Input/ns2:Row_Id"/> <!- - Line 5 - -> <to variable ="OutputVariable"<!- - Line 6 - -> part = "query_Output" <!- - Line 7 - -> query="/ns2: query_Outnput/ns2:RowId"/> <!- - Line 8 - -> </copy><!- - Line 9 - -> </assign><!- - Line 10 - -> Which two changes allow Assign1 to work with the current values of InputVariableandOutputVariable? 

Answer options:

A. adding the attribute bpelx :insertMissingToData="yes" to line 2
B. adding the attribute bpelx :insertMissingFromData="yes" to line 2
C. correcting the namespace prefixes in line 5
D. correcting the namespace prefixes in line 8

BC