Answer:
Formal operational thought is most similar to A. fluid intelligence.
Explanation:
Formal operational thought beings to develop around the 11 years of age and it is when an individual begins to think in a more abstract manner. He/she develops logical thinking and deductive reasoning, amongst others.
Fluid intelligence is one's capacity to think in a logical manner, it is one's ability to solve problems and even notice patterns in thought.
Both of these concepts are similar to one another since they require the development of logical thinking.
