The output of printf3f 3456789 is One of the following is a

The output of printf(\"%.3f\", 345.6789); is One of the following is a reserved word One of the following is a valid user-defined identifier

1.4 ansis 345.679 In this it will print till the 3 digit after decimal and rounding off has been done.

1.6 ans is *first_var . User defined identifier are alphanumeric string that begins with alphabet or underscore