which would be the best topic sentence for a paragraph about how to train a dog?\nthis paragraph is about…

which would be the best topic sentence for a paragraph about how to train a dog?\nthis paragraph is about how to train dogs.\ndo you have a pet dog and a desire to train it?\ntraining a dog requires patience and determination.\nalthough people have all kinds of pets, dogs are the easiest to train.
Answer
Brief Explanations:
A topic - sentence should introduce the main idea. The sentence "Training a dog requires patience and determination" directly relates to the process of training a dog and sets the tone for a paragraph about how to train a dog. The first option is too general, the second is a question which is not a typical topic - sentence, and the fourth is about comparing dogs to other pets rather than focusing on the training process.
Answer:
Training a dog requires patience and determination.