Which of these crooners was NOT a member of the Rat Pack?

Here is the question :

WHICH OF THESE CROONERS WAS NOT A MEMBER OF THE RAT PACK?

Here is the option for the question :

• Dean Martin
• Mel Tormé
• Sammy Davis Jr.
• Frank Sinatra

The Answer:

And, the answer for the the question is :

Explanation:

[STC0013597]. Famous members of the Rat Pack included Frank Sinatra, Dean Martin, Sammy Davis Jr., Peter Lawford, and Joey Bishop, but the group also included Errol Flynn, Nat King Cole, and Mickey Rooney in its early days. The Rat Pack wasn’t the group’s name, though. They preferred to simply call themselves “the Summit” or “the Clan.” Marilyn Monroe, Shirley MacLaine, and Judy Garland were all considered honorary members of the Rat Pack.