Final answer:
It is true that two children can answer the same questions correctly on an intelligence test and have different intelligence levels due to the complex nature of intelligence, which is influenced by genetics, environment, education, and potential cultural bias of the tests.
Step-by-step explanation:
The statement, "Two children can answer exactly the same items on an intelligence test correctly, yet one can be above average in intelligence and the other below average", is true. This is possible because intelligence tests measure a range of cognitive abilities, and different individuals may have varied strengths and weaknesses. For instance, two children might have the same score on a test, but one might have significantly better spatial reasoning while the other has stronger linguistic skills.
Additionally, intelligence tests also have to be considered in the context of environmental and cultural factors. Tests may be designed with cultural biases that can affect performance independently of actual intelligence. It is also worth mentioning that intelligence is a complex trait influenced by a combination of genetics, environment, and education, rather than a single factor such as test performance.
Related to the question, selection (d) from the given options is correct: 'There are many factors working together to influence an individual's intelligence level.'