Answer:
D. appendices
Explanation:
The term appendices refers to the supplemental information provided in a proposal. It often includes examples of past projects, client testimonials, and technical specifications. Appendices basically provide the readers with the additional information which help them in better understanding the proposal in a greater detail. It is combination of additional and supplementary materials which includes the results of the past projects, testimonials, supportive data and other technical specification of the project, which can't be included in the main body of the proposal.
