Final answer:
The Residual Disability Rider allows an individual receiving Disability Income benefits to continue receiving benefits while working part-time by compensating for the loss of income due to partial disability.
Step-by-step explanation:
The feature that would allow D, an architect receiving Disability Income benefits, to continue receiving benefits while working part-time is the Residual Disability Rider. This rider is specifically designed to provide benefits to those who are not totally disabled but have a loss of income as a result of not being able to work full-time due to their disability. It often calculates the disability benefit as a percentage of the loss of income due to the disability, thus allowing the individual to receive partial benefits while working part-time.
It is important to differentiate this from the other options provided: A) Partial Disability Rider often applies when a person is temporarily unable to perform some of their work duties, B) Presumptive Disability Rider assumes total disability in cases of loss of sight, speech, hearing, or the use of limbs, regardless of the ability to work, and D) Noncancelable Disability Rider ensures that the policy cannot be canceled as long as premiums are paid but does not correlate with the ability to work part-time.