Which factor would be considered in quantitative adjustments?

The correct choice, comparative sales data, is essential for quantitative adjustments in the appraisal process. This data involves analyzing the sale prices of similar properties, also known as comparables or "comps," within the same market. By using specific metrics from these comparable sales—such as square footage, number of bedrooms and bathrooms, lot size, and other relevant features—an appraiser can make objective adjustments to account for differences between the subject property being appraised and the comparable properties.

These quantitative adjustments help establish a fair market value for the property based on measurable and comparable data rather than subjective opinions or trends. The process is grounded in statistical analysis and supports the appraiser's conclusions with empirical evidence, making it a vital aspect of the appraisal methodology. The focus on data ensures that the valuation process remains grounded in objective, reliable information.

Other options, such as neighborhood trends or subjective homeowner opinions, do not provide the same level of empirical support that quantitative data does. While these factors may inform the broader context of an appraisal, they do not constitute the quantitative adjustments necessary for precise valuation.