Which of the following two firms is more vertically integrated? How can you tell? (a) Firm A has included manufacturing, sales, finance, and human resources within its boundaries and has outsourced...

Which of the following two firms is more vertically integrated? How can you tell?

(a) Firm A has included manufacturing, sales, finance, and human resources within its boundaries and has outsourced legal and customer service.

(b) Firm B has included manufacturing, sales, legal, and customer service within its boundaries and has outsourced finance and human resources.