Which of the following best describes an itinerary builder?

An itinerary builder is best described as a software for customizing travel plans based on preferences because it allows users to create a detailed itinerary that fits their individual needs and desires. This tool typically enables travelers to select various components of their trip, such as destinations, accommodations, activities, and transportation, all tailored to personal interests and schedules.

By incorporating options based on user preferences, an itinerary builder enhances the travel planning experience by providing personalized solutions, ensuring that travelers can enjoy aspects of their journey most relevant to them. This feature distinguishes it from other options that lack customization capability—such as platforms that only handle flight bookings or tools aimed at managing staff schedules.