Final answer:
An example of fluid intelligence is determining the validity of an abstract logical syllogism as it requires processing and applying logical rules, indicative of the capability to see complex relationships and solve problems in novel situations.
Step-by-step explanation:
Fluid intelligence refers to the ability to see complex relationships and solve problems. An example of fluid intelligence from the given choices would be determining the validity of an abstract logical syllogism.
Fluid intelligence is distinct from crystallized intelligence, which is characterized by the acquisition of knowledge and the ability to retrieve it, such as knowing the formula for the area of a circle or knowing that rivers are created from a system of tributaries. The ability to apply abstract and analytical thinking to new, uncertain situations or problems is a hallmark of fluid intelligence, making the evaluation of a syllogism a prime example because it requires the application of logical rules to a new situation.
Against this is the example of being skilled at woodcarving, which is more about applying learned skills, and thus would be more indicative of crystallized intelligence.