【单选题】

You are a project manager for residential construction.As a project manager, you must be especially concerned with building codes particularly in the quality planning process. You must ensure that building codes are reflected in your project plans because ______ .

A、standards and regulations are an input to quality planning
B．quality audits serve to ensure there is compliance with regulations
C．they are a cost associated with quality initiatives
D．compliance with standards is the primary objective of quality control