Final answer:
Annual wages and pay increases are classified as a quantitative metric of human resources.
Step-by-step explanation:
The correct answer is D) Quantitative. Annual wages and pay increases are quantitative metrics of human resources because they can be measured in numerical terms. Quantitative data is information that can be expressed as a quantity or number, which is the case with annual wages and pay increases. For example, if an employee's annual wage is $50,000 and they receive a 5% pay increase, their new annual wage would be $52,500.