What is the only current MLB team to never play in a World Series?

Here is the question :

WHAT IS THE ONLY CURRENT MLB TEAM TO NEVER PLAY IN A WORLD SERIES?

Here is the option for the question :

Chicago White Sox
Tampa Bay Rays
Detroit Tigers
Seattle Mariners

The Answer:

And, the answer for the the question is :

Seattle Mariners

Explanation:

[STC0020006]. Only the Seattle Mariners have never played in a World Series, out of the 30 current MLB teams (15 in the American League and 15 in the National League). Seattle has seen some of the game’s brightest players, including Ken Griffey Jr., Felix Hernandez, and Alex Rodriguez, but it has also seen some of the most heartbreaking times. For example, in 2001, the Mariners tied the MLB record for single-season wins (116), but were defeated in the ALCS by the Yankees.