Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

The correct choice recognizes that WSJT-X includes a variety of digital modes suitable for different operating activities. This software suite is specifically designed to facilitate weak signal communication and it supports Earth-Moon-Earth operations, weak signal propagation beacons, and meteor scatter communication methods, among others.

By being equipped with modes such as FT8, JT65, and others, WSJT-X allows amateur radio operators to utilize these techniques effectively. Each of these activities relies on digital modes for improved communication performance, especially under conditions where signals are faint or difficult to detect. The software's capabilities make it a versatile tool for operators engaging in various weak signal communications, confirming that all listed activities are supported by WSJT-X's digital mode functionalities.

This collective support of Earth-Moon-Earth communication, weak signal propagation beacons, and meteor scatter exemplifies the software's comprehensive approach to enhancing amateur radio operations.