During a meeting, Santillana reviews with the investment committee a hypothetical transaction in which repurchase agreements are used. Responding to a question asked by a committee member, Santillana explains: "The quality of collateral as well as short sellers' positions affect the repo rate." Is Santillana correct in her explanation of factors affecting the repo rate? a) Yes. Ob) No, only the quality of collateral is correct. D c) No, only the short sellers' position is correct