This question has options. Select from options: Read this fact: "the composition of something can be used to identify that something"

Now answer this question: "How might you figure out what a parts are needed to let your car drive?"

OPT:
(a). think very hard until you figure it out;
(b). ask the person who invented it;
(c). throw it in a lake and see if it floats;
(d). break it down and determine what it is composed of;
(d).