Which of the following is a definition of an RFP?

Which of the following is a definition of an RFP?

A.
A document sent to potential vendors to solicit a bid for a project.

B.
A document sent to potential vendors to request information for skills and experience for a project.

C.
A document sent to potential vendors to request a commitment for a project.

D.
A document sent to potential vendors to solicit information that excludes pricing information for a project.