Tim and Tom Are Monozygotic Twins Who Were Raised Separately

Multiple Choice

Tim and Tom are monozygotic twins who were raised separately from birth. Tim lived in an enriched environment and grew to be 6'1" tall. Tom lived in a deprived environment and grew to be 5'11". This exemplifies

A) the effects of environment on height.
B) individuals with identical phenotypes for height who exhibited different genotypes.
C) developmental pacing.
D) the effects of genes, since fraternal twins share only 50% of their genes in common.