Draw the predominant form of serine present in a solution of pH = 7.0.

Predominant form of serine at pH 7.0 showing amino and hydroxyl groups.

Predominant form of serine at pH 7.0 with a negatively charged carboxyl group.

Predominant form of serine with a neutral amino group and hydroxyl group.

Predominant form of serine with a negatively charged carboxyl group and neutral amino group.