Which of the following is an example of licensing?

a- An Indian automobile manufacturing company buys engines from a Japanese manufacturer for its environmentally-friendly cars.

b- A South-Korean consumer electronics manufacturer produces the screens for its brand of television and sends orders to a factory in China to manufacture the casing for the television.

c- A U.K-based motorcycle manufacturer, produces limited-edition customizations of the company's stock models and sells it to customers around the world.

d- An American electronics firm has given the right to a new process for manufacturing e-book readers to an electronics manufacturer in Canada.