What is the difference between a B $2$ C and a C$2$B$?$

Multiple Choice

B$2$C focuses on collaboration, and C$2$B focuses on consumers

B$2$C focuses on business to consumers, and C$2$ tocuses on consumers to business

B$2$C focuses on consumers as customers, and C $2$ B focuses on companies as customers.

B$2$C focuses on companies as customers, arid C$2$B focuses on consumers as customers.