Janet Is Called for Jury Duty and Is Selected for Possible

Janet is called for jury duty and is selected for possible service on a jury.However, when the defendant's attorney sees her, he notices that she is wearing a green dress.Both the defendant and the defendant's attorney hate green dresses.If the defendant's attorney strikes her name from the jury because of the dress color:

A) this is a valid challenge for cause.
B) this is a valid peremptory challenge.
C) this is not a valid challenge.
D) the plaintiff's attorney can have Janet serve by making an offer of proof to the judge.