During the current accounting period, malibar farms company paid $2,000 for advertising services in advance of receiving them. prepaid advertising was debited and cash was credited for $2,000. at the end of the accounting period, three-fourths of the services paid for had been received. the proper adjusting entry is: select one: a. prepaid advertising 1,500 advertising expense 1,500 b. advertising expense 500 prepaid advertising 500 c. advertising expense 1,500 prepaid advertising 1,500 d. prepaid advertising 500 advertising expense 500