The kid needs glasses rather

The teacher is an asshole

He should get the points, technically correct is the best kind of correct

20 years later at the class meeting

Student to teacher

going by that logic hes still wrong and should only circel 1

It's not the kids fault, that either the teacher doesn't explain how the test should be read or the teacher haven't created a straightforward test I would have circled the 1 only... because the task wante the smallest number - singular There are many typographic rules the teacher should know to create a fair, easily readable and straight forward test!

thats incorrect, correct will be just circling 1

They are all the same size.

Teacher lables each line with roman numerals, then in the sublines you use arabic numerals? No wonder the kid is confused.