从供选择的答案中选出应填入英语文句中()的正确的答案。 The C programming language has (A) one

从供选择的答案中选出应填入英语文句中()的正确的答案。

The C programming language has (A) one of the most (B) programming languages, and it has been implemented on most personal computers and multiuser systems, especially those designed for research and development. It evolved from the version described in Kernighan and Ritche's work (called "K&R C" after the authors into(C) variants, including the standard ANSI C, which (D) many type-checking features and includes a standard library. Of the two main (E), K&R C is probably the most commonly used on multiuser computers, with ANSI C close behind in the personal computing world, ANSI C is far more common.

A～E:

① much ② variants ③ complex ④ incorporates ⑤ several

⑥ become ⑦ popular ⑧ editions ⑨ come ⑩ users