How can users manage their travel contacts in TraX?

In TraX, users can efficiently manage their travel contacts by adding, editing, or deleting contact information directly within the system settings. This functionality allows users to keep their contact lists up to date without needing to go through additional steps or rely on external assistance. By navigating to the appropriate section within the system settings, users can easily modify their contacts as necessary, ensuring they have accurate and current information available for their travel planning.

The other options, while they may suggest alternative methods of managing contacts, do not provide the direct and user-empowered approach that option B does. Choices involving mobile apps or customer support may introduce barriers or delays in managing contact information, and sharing contacts with other users, although potentially beneficial, does not inherently provide a method for individual management of contacts. Thus, directly managing contacts in system settings is the most effective approach available to users in TraX.