An executive summary should $\_\_\_\_\_\_\_\_.$

a$.$

break down a proposal to its primary and distinct parts

b$.$

guarantee making a sale

c$.$

present a sales agreement for a buyer to sign off on and complete

d$.$

spell out a customer's problems, the nature of the proposed solution, and the resulting benefits to the customer

e$.$

offer a succinct overview and background of a firm, but emphasize only the company's capabilities