California Code, Probate Code - PROB § 6224

If more than one property disposition clause appearing in paragraphs 2 or 3 of a California statutory will is selected, no gift is made. If more than one property disposition clause in paragraph 5 of a California statutory will form is selected, or if none is selected, the residuary estate of a testator who signs a California statutory will shall be distributed to the testator's heirs as if the testator did not make a will.