根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
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At the beginning of 2005, Silly Buswas nothing more than a start up small business.Today, they have released(发行)four CDs all over the country, andmany music videos, which can be heard and seen on stations throughout theUnited States.____They have alsoworked with well known companies, such as Radio Disney, XM Radio and NBC.
You may be asking yourself，“So, how is their music making adifference？Whatmakes Silly Bus different from other kids'music？”_____Their first CD release focused onStandard of Learning (SOL) content for young children (Kindergarten through 2ndgrades)．Thesongs on this album cover different topics, including math, grammar, science,physical fitness, and history.
For their second and third CDreleases, they teamed with preschool educators to write songs connected withlearning the alphabet.____Thesong TurkeyTime has fast become a national favorite, having been featured on NBC'sTodayShow the past two years on Thanksgiving Day.
____They devote to start many CDs andsingles.For example, Silly Bus wrote, performed and produced“Watch Me, I Can DoThis！”forimproved support of SportsBackers' Monument Avenue 10K.This encouraging songwas used to call on thousands of children to take part in the yearly kids runof the event.Silly Bus wrote, performed and produced“Artie，”the Kids Extra theme song.The song iswell received and often broadcasted in different TV stations and on the web.
A．Itis their focus on educational content.
B．Makingmore money with a creative idea.
C．Makinga Difference with Educational Music.
D．Theyhave played for many organizations and schools.
E．SillyBus is best popular among children and parents.
F．Thesesongs include both phonics and language techniques.
G．SillyBus has worked with several companies and nonprofit organizations.
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