Which sentence is the best example of atopic sentence in a paragraph about pet ownership? owners need to set aside time to bond with the dog. adopting a pet dog is a big responsibility. young dogs need hours of training. veterinary visits are important to maintain a dog’s health.

Adopting a pet dog is a big responsibility.

Explanation:

The correct answer is D. Usage dictionary

Explanation:

A reference book refers to a type of document or source that is used to get concise and precise information about facts or words this includes dictionaries, atlas, encyclopedias, among others in which different type of information can be found. In the case of, the way the words of a language should be used, the reference book that offers this information is a "usage dictionary", because this source lists alphabetically the words of a language and provides information about its use that in most cases include the type of word a word is such as adjective, noun, preposition or adverb, the definition of ti and examples of grammatically correct sentences in which a word is used that illustrates the use of the word in different contexts. Thus, the reference book that describes our current conventions for using words is a usage dictionary.