Use the Following to Answer the Questions

Use the following to answer the questions.
Megabus is a new line operating in the Northeast and Midwestern United States,plus in Canada.It offers travelers a cheap alternative to driving and flying between large cities,keeping the fares extremely low yet offering the latest technology.Unlike the traditional Greyhound Lines,Megabus is an express service,and is equipped with Wi-Fi,video screens,headsets,and seat belts.Many buses also run on biodiesel fuel.Additionally,Megabus picks up and drops off people in the centers of cities rather than at inconveniently-located terminals.Patrons can book tickets at Megabus.com,where some fares begin at just $1.Routes are limited,and are offered out of cities such as Toronto,New York,Baltimore,Philadelphia,and Chicago.Recently,its competitor Greyhound,has launched two new bus lines,BoltBus and NeOn,with similar fares and high-tech amenities.A fare on NeOn bus from Buffalo,NY to New York City is $50.00 roundtrip,while the same fare through Greyhound's traditional bus line costs $92.00.The benefit of Greyhound's traditional line is that there are more departure times and more stops in smaller towns along the way.
-Refer to Scenario 10.2.When Greyhound launched the BoltBus and NeOn bus lines,this is an example of

A) a branding extension.
B) co-branding.
C) an extension in the width of the product mix.
D) an extension in the depth of the product mix.
E) family branding.