A tendency to apply a rule of grammar at all times is a type
of overgeneralization. So the correct option as far as this question goes is
the second option. Many times it can be seen that teachers invent certain rules
for the students, but ultimately these rules are only for certain cases and
cannot be applied globally. These kinds of rules are overgeneralization. This kind
of overgeneralization happens not only in schools and colleges but can happen
to life as a whole as well.
