$45 000 Is Owed to Suppliers for Inventory Purchases at the Beginning

$45 000 is owed to suppliers for inventory purchases at the beginning of the year and $24 000 is owed at the end of the year.If annual credit purchases of inventory are $120 000,the cash paid to suppliers for the year is:

A) $141 000
B) $99 000
C) $165 000
D) $144 000