Is C a high language or not?

Answer 1

Yes, it is.

Any language with instructions that the processor does not directly execute (for, while, if, switch) then it's a high level language.

A low level language is basically the exact processor instructions just using different words. (e.g. load a,23 the processor would get this command directly and load 23 into the a register)

A high level language is translated into a low level language then translated into the processors instructions. (e.g. a while loop would have the code in front of the test and jump instructions to go back to the beginning of the code running WHILE something happens)