The question above is an excellent example of a word analogy. A word analogy is usually used to indicate the comparison of elements containing similarities in their definition. For the case above, it establishes the industry to its product thus the answer would be the third choice "cars."
they come from greek roots
example, gravitropsim
gravi is gravity
tropos means 'turning'
so means turning to gravtity
phototroposism
photos=light
tropos='turning'
so it means turning toward the light
photosynthysis
photos=light
synthysis=tuning into or transforming into a useable form
so it means turning light into a usable form
When you write about yourself
Sometimes we underestimate ourselves, but in reality, sometimes we are the most essential thing. We are the difference of a million infinities, and completely going into oblivion.