JAMB Principles of Accounts 2001 Question 18

Use the information below to answer questions 17 and 18.
Stock Control Account [Extract] as at January, 2000
(Date: Receipts Qty, Unit Price ₦, Amt. ₦ | Issues Qty, Unit ₦, Amt. ₦ | Balance Amt. ₦)
Jan. 1: 100, 5.00, 500.00 | — | 500.00
Jan. 5: 50, 6.00, 300.00 | — | 800.00
Jan. 7: — | 40, 6.00, 240.00 | 560.00
Jan 10: 50, 4.00, 200.00 | — | 760.00
Jan 15: — | 50, 4.00, 200.00 | 560.00
Jan 20: — | 10, x, y | z
The value of x is

1. A.₦4.00
2. B.₦5.00
3. C.₦5.50
4. D.₦6.00.