※ 글의 흐름으로 보아 빈칸에 들어갈 가장 적절한 것은? (14~16)… | [9급 서울시 영어] 17년 2회차 기출문제 상세 페이지

※ 글의 흐름으로 보아 빈칸에 들어갈 가장 적절한 것은? (14~16)
Modern banking has its origins in ancient England. In those days people wanting to safeguard their gold had two choices — hide it under the mattress or turn it over to someone else for safekeeping. The logical people to turn to for storage were the local goldsmiths, since they had the strongest vaults. The goldsmiths accepted the gold for storage, giving the owner a receipt stating that the gold could be redeemed at a later date. When a payment was due, the owner went to the goldsmith, redeemed part of the gold and gave it to the payee. After all that, the payee was very likely to turn around and give the gold back to the goldsmith for safekeeping. Gradually, instead of taking the time and effort to physically exchange the gold, business people __________.

began to exchange the goldsmith’s receipts as payment

saw the potential for profit in this arrangement

warned the depositors against redeeming their gold

lent the gold to somebody else for a fee