Consider this code snippet in some unfamiliar language. 1 begin 2 integer a; procedure foo (b: integer ); begin 3 4 5 6 7 a := a+1; b := b+4; print (a); 8 end; 9 a := 0; 10 foo (a); 11 print (a); 12 end; If the language uses pass-by-value, which value is printed at Line 7?
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