There are five types of generic process design. Which option represents the jobbing process?

a$.$

It is a process that is suited to the production of high volumes, normally greater than the volumes achievable by batch manufacture.

b$.$

It is suited to the production of very small quantities of a product or even once$-$offs.

c$.$

It is the process that is suited to the production of extremely high volumes and very low variety, often a single product, typically a fluid.

d$.$

Each step of the process is likely to involve specialist machinery that is operated by workers with very specific skills.