Question

The disc jockey who popularized rock and roll was ________.

Bill Haley
Elvis Presley
Alan Freed
Ed Sullivan

Answer 1

Definitely was Mr. Alan Freed.

Step-by-step explanation:

Mr. Alan Freed was considerate as one of the most important popularized the Rock and Roll during the 50s.

From popularizing the R&B records that did become the foundation of rock to planning the first rock and roll concert, he was the tireless promoter of the genre.