The passage implies that in Lymnaea peregra, there will generally be A. more offspring of the nondominant hand in broods where handedness is determined after, rather than before, fertilization B. a sinistral gene that produces a protein in the cytoplasm of the egg cell C. fewer sinistral offspring in dextral broods than dextral offspring in sinistral broods D. equal numbers of exclusively left-and right-handed broods E. an increasing occurrence of left-handedness in successive broods