Why is C++ the most studied Programming Language here??

Question

HTML seems to be the easiest, and probably one with most challenges.

Answer 1

Because C++ is famous, versatile and you learn most from it.
HTML isn't a programming language.

Answer 2

Most of the varsity level Institutes included it in their Computer Science related syllabus.

As most of the Sololearners are student,so they know about it.

C++ follows descriptive coding process which is helpful to understand logical process of Programming.