The body of a proposal

explains the research process.
states a plan of action.
identifies the chosen solution.
examines the solution’s effectiveness.

I would say that the body of a proposal states a plan of action on how to proceed with a project to bring it to completion and explains the ability of the proposer to tackle the project in such a way as to complete it successfully.

Therefore the answer is:

States a plan of action

I hope that this has satisfied you.

The body of a proposal states a plan of action.  The main reason is because  it needs a beginning and, a middle and an end also known as the conclusion.

Hope this helps.

explanation:

the answer is the huegonots.

d. china

good luck

d is the best choice