Referring to the fraction class of fraction. py of lab 12: given: a = fraction. fraction( 1, 2 ) b = fraction. fraction( 2, 3 ) what fraction method is called when the expression a - b is evaluated? question 1 options: __add__ __sub__ __lt__ __gt__ question 2 (1 point) referring to the fraction class of fraction. py of lab 12: given: a = fraction. fraction( 1, 2 ) b = fraction. fraction( 2, 3 ) what fraction method is called when the expression a < b is evaluated? question 2 options: __add__ __sub__ __lt__ __gt__ question 3 (1 point) referring to the fraction class of fraction. py of lab 12: given: a = fraction. fraction( 1, 2 ) what fraction method is called when the expression 5 - a is evaluated? question 3 options: __add__ __radd__ __sub__ __rsub__ question 4 (1 point) referring to the fraction class of fraction. py of lab 12: given: a = fraction. fraction( 1, 2 ) what fraction method is called when the expression 5 < a is evaluated? question 4 options: