Final answer:
D) Limited control
People have limited control over the intrinsic factors that affect skin aging since these factors are largely determined by genetics and biological processes.
Step-by-step explanation:
Regarding the intrinsic factors that affect skin aging, people have limited control. Intrinsic factors include genetics, hormonal changes, and certain biological processes, which are inherently programmed into an individual's biology. While lifestyle choices such as diet and sun protection can impact the extrinsic aspects of aging, intrinsic factors are less susceptible to personal influence. Therefore, the most accurate answer to the question, "People have ________ over the intrinsic factors that affect skin aging," is D) Limited control.