On size error truncation or no effect

On size error truncation or no effect

Please take a look at the following question and clarify if the truncation would occur or there will be no change in value of second Variable VAR2

Two variables declared as below in COBOL program
01 VAR1 PIC 9(2) VALUE IS 20
01 VAR2 PIC 9(3) VALUE IS 990

ADD VAR1 TO VAR2 ON SIZE ERROR DISPLAY ‘ON SIZE ERROR’
DISPLAY ‘VALUE OF  VAR2 IS =’ VAR2

What is the value of B when it is displayed?  a) 990 b) 1010  c) 101 

d) None of the above