Acetone, shown here, is a common solvent and component of fingernail polish remover. Which of the following Lewis structures is acetone? 
Definitions:
Fertilization
The process by which a sperm and an ovum—the male and female gametes, respectively—join to form a single new cell.
Gamete
A mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
Chromosome
A thread-like structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
Zygote
The initial cell formed when a new organism is produced by the merging of an egg and sperm cell during fertilization.
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