So I'm studying for the mta Software Fundamentals exam on Sep 6. I'm looking at practice exams online but I don't trust that they're giving me correct info. Here's an example - The question is as follows:

You are designing a class for an application. You need to restrict the availability of the member variable accessCount to the base class and to any classes that are derived from the base class. Which access modifier should you use? A. Internal B. Protected C. Private D. Public

Now my answer is B. But the exam claims it's C, private. This is obviously wrong, right? Now I don't know if I can trust the exam at all. And this isn't the only one. I took an exam on techveze and they had multiple wrong answers. I'll have to post some of those one day. I'm just worried that I can't trust any of these practice exams. Does anyone know of any trustworthy ones? Or am I just arrogant and am actually picking the wrong answer?