Which of the following statements about using a plantwide overhead rate based on direct labour is correct? questionSelect one:O a$.$ The labour theory of value ensures that using a plantwide overhead rate based on direct labourwill do a reasonably good job of assigning overhead costs to jobs.O b$.$ Using a plantwide overhead rate based on direct labour$-$hours will ensure that direct labourcosts will be correctly traced to jobs.$$ c$.$ It is often overly simplistic and incorrect to assume that director labour$-$hours is a company'sonly manufacturing overhead cost driver.O d$.$ Using a plantwide overhead rate based on direct labour$-$hours will ensure that direct labourcosts are correctly traced to jobs.