Question: Christmas Bells is an advert that plays the song that originated in what part of England?

Context paragraphs:
We Wish You a Merry Christmas: "We Wish You a Merry Christmas" is a popular English Christmas carol from the West Country of England.

Blandfordia cunninghamii: Blandfordia cunninghamii, commonly known as mountain Christmas bells or simply Christmas bells, is a tufted perennial herb found only in the Blue Mountains of eastern Australia.

Renditions (album): Renditions is the first studio album by Amelia Warner under the name Slow Moving Millie.  The album features the songs 'Please Please Please Let Me Get What I Want' which was the song for the John Lewis 2011 Christmas advert, and 'Beasts' which was used in a Virgin Media TV advert.  The first eight tracks on the album are covers but 'Beasts' and 'Hart With A Crown & Chain' were written by Amelia Warner and are original tracks for the album.  After the first week of release, the album entered the UK Albums Chart at number 89.

Christmas Bells (advertisement): "Christmas Bells" is an American television commercial produced by the Hershey Company promoting Hershey's Kisses.  The advertisement, produced with stop-motion animation, features Hershey's Kisses, fashioned as a handbell choir, playing the Christmas carol "We Wish You a Merry Christmas".  It debuted in 1989 and is shown in the United States each holiday season; as such, it is the longest-running television commercial for the Hershey brand.

Mykola Leontovych: Leontovych was born and raised in the Podolia Governorate of the Russian Empire (present-day Ukraine).  He was educated as a priest in the Kamianets-Podilskyi Theological Seminary and later furthered his musical education at the Saint Petersburg Court Capella and private lessons with Boleslav Yavorsky.  With the independence of the Ukrainian state in the 1917 revolution, Leontovych moved to Kiev where he worked at the Kiev Conservatory and the Mykola Lysenko Institute of Music and Drama.  He is recognized for composing "Shchedryk" in 1904 (which premiered in 1916), known to the English-speaking world as "Carol of the Bells" or "Ring, Christmas Bells".  He is known as a martyr in the Eastern Orthodox Ukrainian Church, where he is also remembered for his liturgy, the first liturgy composed in the vernacular, specifically in the modern Ukrainian language.  He was assassinated by a Soviet agent in 1921.

Blandfordia: Blandfordia is a genus of flowering plants, placed in the family Blandfordiaceae of the order Asparagales of the monocots.  The genus is native to eastern Australia.  Plants in this genus are commonly referred to as Christmas bells due to the shape of their flowers and the timing of their flowering season in Australia.  "Blandfordia" was named by English botanist James Edward Smith in 1804 in honour of George Spencer-Churchill, 5th Duke of Marlborough, the Marquis of Blandford.

I Heard the Bells on Christmas Day: "I Heard the Bells on Christmas Day" is a Christmas carol based on the 1863 poem "Christmas Bells" by American poet Henry Wadsworth Longfellow.  The song tells of the narrator's despair, upon hearing Christmas bells, that "hate is strong and mocks the song of peace on earth, good will to men".  The carol concludes with the bells carrying renewed hope for peace among men.

Sandersonia: Sandersonia is a rhizomatous plant genus native to South Africa (the Cape Provinces, KwaZulu-Natal and the Northern Provinces) and Swaziland, part of the family "Colchicaceae".  It has only one species, Sandersonia aurantiaca.  It is also called Christmas bells, golden lily of the valley or Chinese lantern lily or Chinese lantern bulb "S. aurantiaca" is a perennial plant and a climber that can reach 30 inches in height.  The flowers are yellow or orange.

Blandfordia nobilis: Blandfordia nobilis, commonly known as Christmas bells, is a tufted perennial herb native to eastern Australia.  Known as Gadigalbudyari in the Cadigal language of the local Indigenous Australians.  Known as Reminé to the Aborigines of the Brune Island and South Tasmania region.

Ring Christmas Bells (album): Ring Christmas Bells was recorded during the Mormon Tabernacle Choir's 2008 Christmas shows in the LDS Conference Center with special guests Brian Stokes Mitchell and Edward Herrmann.  The album was released on August 31, 2009 along with a concert DVD.  A recording of the concert aired on PBS in December 2009.

Supporting paragraphs: Christmas Bells (advertisement) We Wish You a Merry Christmas
Answer: West Country