The Following Journal Entries (Without Dollar Data) Were Taken from the Accounting

The following journal entries (without dollar data) were taken from the accounting records of Case Company. Case Company has a job-order costing system and applies overhead to jobs using a predetermined overhead rate.
$\begin{array}{|l|l|l|}\hline \text { 1. Work in process } & \mathrm{XXX} & \\\hline \text { Manufacturing overhead } & \mathrm{XXX} & \\\hline \text { Wages payable } & & \mathrm{XXX} \\\hline \text { 2. Salary expense } & \mathrm{XXX} & \\\hline \text { Wages payable } & & \text { XXX } \\\hline \text { 3. Manufacturing overhead } & \mathrm{XXX} & \\\hline \text { Accumulated amortization } & & \mathrm{XXX} \\\hline \text { 4. Work in process } & \mathrm{XXX} & \\\hline \text { Raw materials } & & \mathrm{XXX} \\\hline \text { 5. Work in process } & \mathrm{XXX} & \\\hline \text { Manufacturing overhead } & & \mathrm{XXX} \\\hline \text { 6. Manufacturing overhead } & \mathrm{XXX} & \\\hline \text { Raw materials } & & \mathrm{XXX} \\\hline \text { 7. Finished goods } & \mathrm{XXX} & \\\hline \text { Work in process } & & \mathrm{XXX} \\\hline \text { 8. Raw materials } & \mathrm{XXX} & \\\hline \text { Accounts payable } & & \mathrm{XXX} \\\hline\end{array}$


-Which entry records the purchase of raw materials?

A) 8.
B) 4.
C) 6.
D) 1.