A chemical is manufactured in two

processes, $x$ and $Y.$ Data for process $Y$ for

last month are as Follows: Material

transferred from process $2,000$ litres @ $$4$

per litre, Conversion costs incurred $$12,240,$

Output transferred to finished goods $1,600$

litres, No losses occur in the process. Closing

work in progress is fully complete for material

but is only $50\%$ processed. What is the value

of the closing work in progress $($to the

nearest $$)?$

a$.$ $$2,960$

b$.$ $$4,320$

c$.$ $$2,160$

d$.$ $$1,360$