Spores and gametes are different in that __________.

• A. gametes never resemble spores morphologically
• B. gametes are always haploid whereas spores are diploid
• C. only the formation of gametes contributes to genetic variation
• D. gametes are derived directly from sporophytes to form gametophytes
• E. gametes can fuse to form a zygote, but spores can develop into independent organisms without first forming a zygote