C++ Lesson 51.1: Abstraction

Question

This lessons last question is very annoying, I spent at least 10 minutes on it, until I figured out that "Abstraction" was not correct because it I wrote a capital "A". Please change it so both answers are correct.

Answer 1

you can email about the issue at [e-mail].

Answer 2

I'm surprised case insensitivity isn't the default.