What was Elvis’ first No. 1 Billboard hit?

Here is the question :

WHAT WAS ELVIS’ FIRST NO. 1 BILLBOARD HIT?

Here is the option for the question :

• Hound Dog
• All Shook Up
• Blue Suede Shoes
• Heartbreak Hotel

The Answer:

And, the answer for the the question is :

Explanation:

[STC006654] Elvis Presley’s first recording for RCA Records was a song called “Heartbreak Hotel,” which was also one of his first songs overall. Songwriters Tommy Durden and Mae Boren Axton made a promise to the vocalist that they would produce a single that would sell one million copies, and they did so. Soon after the song’s initial publication, it became Elvis’s first major hit, and he sang it on a variety of television programs more than once.