What would be an example of a pest-resistant plant variety?

A genetically modified plant designed to resist specific insects is a prime example of a pest-resistant plant variety because it has been specifically engineered to include traits that repel or deter certain pests. This modification can involve introducing genes that produce natural toxins harmful to the targeted insects, thereby reducing the plant's vulnerability and the need for chemical pesticides. Consequently, these plants can help growers minimize pest damage while promoting sustainable agricultural practices.

This approach contrasts sharply with the selection of plants that attract all pests, which would typically lead to increased pest pressures and the need for more intensive pest management tactics. Similarly, traditional varieties of common flowers may not possess enhanced resistance to pests unless selectively bred for that trait, which is not guaranteed. Lastly, plants requiring high pesticide application are the opposite of pest-resistant varieties, as they are dependent on chemical interventions to manage pest populations effectively. Thus, option B stands out as the clear example of what constitutes a pest-resistant plant variety.