Which sentence is written correctly? a. we gave gifts to jake, ava and david. b. we gave gifts, to jake, ava, and david. c. we gave gifts to jake ava, and david. d. we gave gifts to jake, ava, and david.

The text uses descriptive details to help the reader understand how a chronometer works, and the image reinforces those details. The image allows readers to see all of the individual parts of the chronometer, such as the dials and the wooden case. It might be difficult for the reader to visualize how the chronometer is suspended in a swiveling brass ring, but the image helps the reader understand exactly how the chronometer is put together.