In the late 1940s, a small band-rhythm section plus a few horns that played a rhythm-and-blues style influenced by big-band swing and electric blues. Saxophonist/vocalist Louis Jordan was a key performer in this style. B. A pop-oriented R

Jump Blues band

Explanation:

Jump blues became very popular in the 1940s. Jump blues is basically an up-tempo technique of blues, which is usually played by a small group of musicians and featuring some horn instruments. It was a precursor of rock & roll as well as rhythm and blues. It was renewed as swing revival in the year 1990.

Louis Jordan was one of the key vocalist or performer in jump blues. They evolved from the big band musics.

Hence the answer is - - Jump Blues