Through Epigenetic Events

Through epigenetic events:

A) the larger chests developed at higher altitudes are passed along directly to offspring.
B) changes in gene frequency are passed along from generation to generation.
C) the smaller chests developed at higher altitudes are passed along to offspring.
D) genes can be turned on or off or amplify or dampen at different times over the course of an organism's total lifetime.
E) fruit flies and monkeys are exactly the same, genetically speaking, as humans and worms.