<span>a. middle-aged woman who speaks a strange language </span>
It is actually B. There, it should have a comma after occupied.
<span>The sentence which needs a semicolon is : 5) Water is not everywhere it's miles away. When there are two or more ideas related ideas in a sentence, they can be joined by semicolon, in other words it is used to l</span><span>ink two </span>independent clauses in order to connect closely related ideas. The common idea is water, and this sentence should look like this: Water is not everywhere;it's miles away.