Gencom International Has Accounts Receivable Days of 34,and Accounts Payable

Gencom International has accounts receivable days of 34,and accounts payable days of 52.If its cash conversion cycle is -7 days,what is Gencom's inventory days?

A) 79 days
B) 93 days
C) 7 days
D) 25 days
E) 11 days