How do these choices affect the exported file?

In the Export Settings panel, you need to export something as a .mov (QuickTime). You see that QuickTime is a choice in the Formats dropdown menu, but find that the Presets have different choices for video codecs.

How do these choices affect the exported file?
A . A format is how the file Is framed (full-frame format) and a codec refers to the extension.
B . A format is a container for your dip. A codec is the way the media is encoded.
C . A format refers to the frame size and rate, and the codec refers to the color space.
D . A format is how the file Is compressed, and a codec refers to the extension.

Answer: B