Hartman Company uses a weighted average process costing system. Material is added at the start of production. Hartman Company started $14,000$ units into production and had $5,000$ units in process at the start of the period that were $75$ percent complete as to conversion costs. If Hartman Company transferred out $12,250$ units, how many units were in ending Work in Process Inventory?

Select one:

a$.$

$6,750$

b$.$

$5,500$

c$.$

$1,750$

d$.$

$3,000$