What feature-length movie is often credited as “the first talkie”?

Here is the question :

WHAT FEATURE-LENGTH MOVIE IS OFTEN CREDITED AS “THE FIRST TALKIE”?

Here is the option for the question :

• Singin’ in the Rain
• Metropolis
• The Cabinet of Dr. Caligari
• The Jazz Singer

The Answer:

And, the answer for the the question is :

Explanation:

[STC0012078]. In the first “talkie,” “The Jazz Singer” from 1927, Al Jolson said, “You ain’t heard nothin’ yet” before breaking into song. ‘The Jazz Singer’ was the first feature-length film to feature spoken dialogue, forever altering the film industry. The previous year, Warner Brothers’ ‘Don Juan’ used the Vitaphone method to show a film with sound, and a similar system was used to show speeches with recorded words.