C. It's low enough that you don't get to skip out on core concepts. I notice a lot of younger programmers who have only used high level languages use inappropri

C. It's low enough that you don't get to skip out on core concepts. I notice a lot of younger programmers who have only used high level languages use inappropriate data types because they do not understand the implications of their choices. It's also high level enough that you won't waste time in minutia of just making something work.