C is literally a high level language.
I get your statement and even agree with it in certain contexts. But in a discussion where high-level languages are presumed (in context) to not have memory management, looping constructs are defined over a semantics inferred range of some given types, overloading of functions (maybe even operators), algebraic datatypes, and other functional language mixins: C most certainly IS NOT a high level language.
This is pedantic to the point of being derailing and in some ways seemed geared to end the discussion occurring by sticking a bar in the conversations spokes.
C was coined originally as high level because the alternatives were things like assembler. a term rooted in comparisson more than anything.