Comment by bsrkf

I always thought it was more akin to a C++ than a C alternative, and reading https://en.wikipedia.org/wiki/D_(programming_language) seems to rather confirm this notion:

  "originated as a re-engineering of C++"
  "influenced by Java, Python, Ruby, C#, and Eiffel"
  "design by contract, ranges, built-in container iteration concepts, and type inference"
  "array slicing, nested functions and lazy evaluation."
  "Java-style single inheritance with interfaces and mixins"
  "function overloading and operator overloading"
  "supports five main programming paradigms" (including OOP)
  ... et cetera

Though it does support things like in-line assembly and the like, I'm sure most C programmers would pass on it, as a C-alternative, based on those factoids.