I would think it would be false considering part of the virus you are trying to get immunity to is in a vaccine
Answer: C
Explanation: Your conclusion always comes last
By the term "condensed", this refers to the density of a state of matter. As a rule of thumb, solids are the most dense because their molecules are very close together. Next is liquids because they flow compared to solids. The least dense are gases. Therefore, a change from a more condensed state to a less condensed state is boiling (liquid to gas).
Answer: The answer for "Which chemical bond most likely stores the most energy?" is C. Double carbon-carbon bond.
Hopefully this helps! :)