（售前售后联系微信号:newbalance533 禁止商业传播.否则停止更新）In which situation is a company operating under the assumption of implied consent?

AAn employer contacts the professional references provided on an applicant‘s resume

BAn online retailer subscribes new customers to an e-mail list by default

CA landlord uses the information on a completed rental application to run a credit report

DA retail clerk asks a customer to provide a zip code at the check-out counter