Final answer:
The accurate paraphrase of ideas from the Web article about the difference between parkour and freerunning is that freerunning includes some movements that are less efficient, focusing more on show.
Step-by-step explanation:
The correct answer to the question, which of the following is an accurate paraphrase of ideas from the Web article, is option C: Freerunning includes some movements that are less efficient than the ones in parkour (Feller 2010). This statement properly paraphrases the difference mentioned in the article between freerunning and parkour. Unlike parkour, which focuses on efficiency of movement, freerunning includes flips and tricks that are more about aesthetics than efficiency.