If im not mistaken the answer should be A.
"A wholesaler usually buys goods on cash from the producers and sells on credit to the retailer. In this way, he provides financing facilities to trade transactions. The wholesalerbears all the trade and financial risks of the business." businessstudynotes.com
<u>functions include</u><u>:</u> assembling, storage, grading / packing, transportation, financing, risk bearing, providing market info,and dispersing / selling