Frank adheres to a diet of dairy products as well as grains, fruits, and vegetables. What type of vegetarian is Frank

The correct answer is: Lacto-Vegetarian.

Explanation:

On the basis of the preference that people have towards different types of food, they can be divided into a number of categories. They are:Vegan: The individuals who consume food obtained only from plant components. They abstain themselves from eating any animal product or  by-product.Semi Vegetarian: The individuals abstain themselves from consuming only red meat products. In addition to plant products they consume other animal products and by-products.Lacto Vegetarian: The individuals consume milk as the only animal by-product apart from consuming plant components.Lacto-Ovo Vegetarian: The individuals consume milk and eggs as the only animal by-products apart from consuming plant components.Lacto-ovo-pesco Vegetarian: The individuals consume milk, eggs and fish as the only animal product and by-products apart from consuming plant components.Non-Vegetarian: They consume all animal and plant products.