I would say the answer is A. Dimitri made the modern periodic table, not chemical symbols, and generally compounds do not have the same properties, for example water which is made of 2 gases.
Answer: All statements are correct. Dreams reveal what is happenning in the unconscious psyche. Unconscious psyche is in movement all the time, i.e. it is changing all the time, it is dynamic. Dreams open the door to all this.
Explanation: dream is considered to be a "royal road" to unconscious (together with other phenomena like fantasies or physical symptoms).
