No. Multiple choice questions normally only have 4 options. However, some have 5, but rarely. So these sheets you fill in are designed to support both 4 and 5 answers since you can just ignore 'E', and only use A,B,C,D. So naturally it's assumed that there are 4 options to chose from and not 5....And this is what the student thought. He probably didn't even look at the exam paper to notice that it was T/F and just chose C for all. Anyway...who cares?