What is the central theme and how is that developed in “the story of an hour.”

The Story of an Hour Theme of Freedom and Confinement. At first, freedom seems like a terrible thing to Mrs. Mallard, who's restricted in lots of ways: through her marriage, by her bad heart, and even inside her home, which she doesn't leave during "The Story of an Hour."

D.) Humans select animals to breed that create offspring with desired traits.

Explanation:

It's in the name. Artificial selection.

Artificial

"made or produced by human beings rather than occurring naturally, especially as a copy of something natural."