Final answer:
The section of the proposal that specifically describes the solution is not labeled as 'Schedule.' The correct term for such a section would typically be 'Method' or sometimes 'Proposal' itself.
Step-by-step explanation:
The proposal section that describes your solution to a problem is not called Schedule (b). The correct names of the sections are a) Proposal, which typically provides the opening with an overview of the problem; c) Method, which outlines the approach for solving the problem; and d) Request for Authorization, often concluding the proposal and seeking approval to proceed. These terms align with the recognizable shape of a proposal that starts with an introduction, followed by discussions of the problem, potential solutions, objections, and concludes with a recommendation or call to action.