A hackathon is a computer event Computer designers and engineers A work on computer projects together. B learning how to get in shape. C plan new Girl Scout badges. D talk about government safety. D

## Step 1<br />A hackathon is a type of event where computer programmers and designers collaborate to create software, apps, or other computer-related projects. This is a common definition of a hackathon.<br />## Step 2<br />The other options provided, such as learning how to get in shape, planning new Girl Scout badges, or discussing government safety, do not align with the typical activities or goals of a hackathon.<br />## Step 3<br />Therefore, the correct answer is option A, which states that a hackathon is a computer event where designers and engineers work on computer projects together.