Proposals are seller prepared documents that describe the seller's ability to provide requested services? See below for remaining portion

It is "B".

To eleicit the proposal is to get speicifed feedback from the supplier.

process B is quite similar to rfq 

The most appropriate option is

B. Request seller responses

 

I would say that all of the answers are accurate, each of those answers are part of the process of selecting a seller or vendor they are All valid answers. If i have to choose one it's very difficult. I would choose B -request seller responses. But not 100% sure

Proposals can be eiter a direct consequence of an rfq / rfp issued by purchasing organization requesting a proposal from vendor or an open offer sent in hope of being taken into consideration in any upcoming tender.

So neither answer is necessarily absolutely correct.

Elicit the proposalrequirements that affect effectiveness, efficiency and satisfaction of a user achieving his/her goals in a defined context of use. And option 'A' select seller the process is used to elicite the proposal.

 

Select Sellers is the process for reviewing offers, choosing among potential sellers, and negotiating written contract with each seller and this process  receives bids or proposals and applies evaluation criteria, as applicable, to select one or more sellers who are both qualified and acceptable as a seller.

Select Sellers is only possible option. Planning purchases, acquisitions and contracting can only be done after due deligence check list is prepared on the sellers

The proposal comes after the customer has selected the vendor and made the order. and waits for the seller prepares a quote, once the client receives the quote can confirm.

so it B the nearest response

A. Select sellers                             .      

a  seller must supply document showing his ability to provide quality service and selling his proposal to be perfect match for the project.