In my opinion, the correct answer is A. I'<span>ve always been a tinkerer as a teenager. This is the only option that describes him as a teenager, providing one personal trait that characterizes him. The other two options are two general claims that don't have much to do with Nolan as a young man. They could pertain to anyone.</span>
Well, that sentence was a type of : Declarative sentence.
Declarative sentence is usually used to relay information or ideas. In this sentence you can see that it give some more detailed information about the painting.
hope this helps