Charles darwin attempts to relate his theory to his cousin emma wedgwood using the selective breeding of dogs as an example. what problem does emma point out with his analogy?

When Charles Darwin attempts to relate his theory to his cousin, Emma Wedgwood, using the selective breeding of dogs as an example, she sees the flaws that other dogs (bigger, stronger dogs) could survive in the wild, but her dog couldn’t. She states that her dog was the runt and wouldn’t have survived in the wild if he was born in the wild.

It's most likely choice a, it makes the most sense in my opinion.

What was the length to begin with?