During the Accounting Period,office Supplies Were Purchased on Account for $4,000.A

During the accounting period,office supplies were purchased on account for $4,000.A physical count,on the last day of the accounting period,shows $1,400 of office supplies on hand.Supplies Expense for the accounting period is $2,700.What was the beginning balance of Office Supplies?

A) $4,100
B) $2,600
C) $100
D) There is not enough information to answer this question.