Three individual employees of Wal$-$Mart Stores, Inc. brought a lawsuit against WalMart alleging that it systematically engaged in sex discrimination against female employees in violation of federal employment law. The U$.$S$.$ Supreme Court refused to grant certification because there would be more than $1\mathrm{.}5$ million claimants spread over more than $3,400$ stores in a multitude of different jobs involving thousands of supervisors over varying time periods.

What kind of lawsuit did the three Wal$-$Mart employees bring?

$44F$

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