The end of 1980 brought an end to rumors of a Beatles reunion due to .

(A) Ringo's All Starr Band's huge success
(B) John's assassination in New York City
(C) Paul's record-breaking Wings Over America tour
(D) George Harrison's sudden death from cancer
(E) George Martin's refusal to work with the group again

The Beatles are one of the most popular and influential music bands worldwide. The band comprised of Ringo Starr, George Harrison, Paul McCartney, and John Lennon.  

Their music was a part of the cultural phenomenon that took place in the 1960s when used to play in clubs and pubs.

The Beatles did a world tour in 1964 and started doing a lot of TV appearances due to the popular demand for their music.

Their music was a mix of rock, pop, Indian, psychedelic rock, and hard rock as well.

The Beatles broke up in the year 1970 after they had been together for more than a decade.

There was worldwide support for the band to come back and make music. However, this rumour of them getting back together came to an end when John Lennon was assassinated in Dec 1980.

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The end of 1980 brought an end to rumors of a Beatles reunion due to John's assassination in New York City.