Final answer:
The passage most supports the inference that Elon Musk is good at juggling multiple tasks, as it describes his simultaneous efforts in space travel, electric vehicles, and reducing gasoline usage.
Step-by-step explanation:
The question asks which inference can be most supported by the passage on Elon Musk. The passage indicates that Musk was pursuing space travel, involved in electric vehicle (EV) company Tesla, and was concerned with reducing gasoline usage. While he may have talents in various areas, the text directly supports that he is capable of multi-tasking as he is addressing more than one major project simultaneously. It does not specifically mention his abilities in car design, traveling in space, or conserving gasoline in a way that shows he is 'good' at these tasks, but rather it mentions his interests and involvement.