Question

Identify which argument is invalid.
If the elephant roars, then it does not want company.
The elephant roared.
Therefore, it does not want company.

Either the elephant roars or wants company.
The elephant did not roar.
Therefore the elephant wants company.

If the panda yawns, then she is not alert.
The panda is alert.
Therefore she did not yawn.

If the water is filtered, then it will not contain lead.
The water is not filtered.
Therefore, it does not contain lead.

Either the water is filtered or it contains lead.
The water is not