Final Answer:
Zadie Smith is a writer who grew up in London _;_she is best known for her award-winning novel White Teeth.
Step-by-step explanation:
The addition of a semicolon in the sentence helps to connect the two independent clauses more effectively. In this case, the semicolon is used to indicate a stronger relationship between the fact that Zadie Smith is a writer who grew up in London and the subsequent information about her being best known for her award-winning novel White Teeth.
Semicolons are commonly employed to link closely related independent clauses without the need for a coordinating conjunction.
In this context, the semicolon serves to enhance the flow of the sentence, creating a seamless connection between Zadie Smith's background and her notable literary achievement. Overall, it contributes to a more polished and cohesive expression of the author's information.