What are the functions of Camtasia Theater in Camtasia Studio?

Suppose you add Captions to a video by synchronizing text. However, when you paste the text as shown in the image, you notice that after the first three lines of text in the text box, the text changes from black to red. What does this indicate?

What does the icon marked as A in the image above indicate?

What happens when you click on the icon marked as A in the image, in Camtasia Studio?

Suppose you are working on a Camtasia project having a video added to the Timeline in Camtasia Studio. What happens when you press "E" on the keyboard?

Which of the icons (marked as A, B, C, D and E) in the image represents Scrubber in Camtasia Studio?

What are the three main areas of the Camtasia Studio interface?

Which of the following would not appear on the timeline?

Camtasia is best known for which of the following?

The easiest way to reduce or remove sounds like fans or noisy lights that are constant throughout an audio recording is to do what?

When a piece of media is selected on the canvas, small circles appear on the outside of the image. What are these small circles used for?