Noting that the Federal Reserve had raised a key short-term interest rate against last month, analysts said that they expected orders for durable goods to decline soon because rising interest rates makes it more expensive to buy them on credit.

(A) rising interest rates makes it more expensive to buy them on credit
(B) rising interest rates make buying on credit more expensive
(C) a rise in interest rates make it more expensive to buy on credit
(D) a rise in interest rates make buying on credit more expensive
(E) a rise in interest rates makes it more expensive for them to be bought on credit

OA B

Source: GMAT Prep