PARIS — Serena Williams was wrapping up her pre-French Open news conference when someone seated in the front row wanted to know whether she would take one question in the local language. The tournament's defending champion gave the OK. The reporter proceeded to put forth a pair of queries, and Williams arched her eyebrows and kiddingly chastised him — in French, of course — for asking two. She went on to answer both, earning a thumb's up from the media member.