__ are internal sources of revenue. Select the best answer. cash reserves ticket sales donations cash from sponsors

The best answer is **ticket sales**. Here's why:* **Internal sources of revenue** refer to money generated from the organization's own activities. * **Ticket sales** directly result from the organization's core function (e.g., a concert, a play, a sporting event).Let's look at the other options:* **Cash reserves** are existing funds, not revenue generated from current activities.* **Donations** are external sources of revenue, coming from outside the organization.* **Cash from sponsors** is also an external source of revenue, coming from sponsorships.