Answer:
All the statements apply
Explanation:
1. Avoid mere mechanical descriptions.
This statement applies because it is an architectural proposal, thus, it should include aesthetic descriptions.
2. Emphasize the benefits to the recipient.
The proposal should include the ways CopperBuild would benefit the investors of the shopping center, from an architectural, and financial point of view.
3. Detail your expertise and accomplishments.
CopperBuild should add a few pages highlighting the firm's past experience, this in order to obtain more credibility.
4. Proposals are sales presentations.
This is a good analogy because what CopperBuild is doing by means of the proposal is selling "itself" (its experience, credibility, prestige) to the investors in order to get the contract.