Answer: (A) Abstract reasoning
Explanation:
The abstract reasoning is the term which is used to refers to the ability for analyzing the various types of data, relationship and the pattern and also has ability for solving the various types of complex system on some regular basis.
The abstract reasoning is the term which refers to the skills that involve various types of strategies that helps in solving the complex problems and easily formulate the theories.
According to the given question, the given situation indicated that Dallas has the abstract reasoning ability as he is creating the representatives diagram for show the relationship of shipment and the consumer purchases.
Therefore, Option (A) is correct answer.