Chinese officials are evaluating a potential option that involves Elon Musk acquiring the US operations of TikTok if the company fails to fend off a controversial ban on the short-video app, according to people familiar with the matter.Beijing officials strongly prefer that TikTok remains under the ownership of parent ByteDance Ltd., the people say, and the company is contesting the impending ban with an appeal to the US Supreme Court. But the justices signaled during arguments on Jan. 10 that t...