Everyone seems to have a favorite breed of dog, but the labrador retriever, with its many skills and natural friendliness, has always had a special place in my heart. labradors are widely regarded as highly intelligent and loyal. because of their personality, they are often valued as great family dogs. my uncle owns a labrador, and it’s the friendliest dog i’ve ever met. because he is such a friendly dog, we often take him to the dog park. but the most fascinating thing about labradors is their hunting skills.

what sentence in this paragraph is unnecessary?

"labradors are known to be highly intelligent and loyal."

"because of their personality, they are often valued as great family dogs."

"because he is such a friendly dog, we often take him to the dog park."

"but the most fascinating thing about labradors is their hunting skills."