Answer:
a. large companies and major labels
Explanation:
In the late 1950s and early 1960s, the British music industry was dominated by large companies and major labels.
In the 1950s the British Music industries and its market place was increasingly dominated by big four record companies: EMI, Decca, Phillips and Pye( in which EMI and Decca had the largest share) By the early 1960s the British had developed a viable national music industry and began to produce adapted forms of American music which lead to creation of independent labels.
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