In a standard dictionary, you can find the key to pronunciation marks in an appendix.
Answer:
1. a photo of a white blood cell
2. a podcast discussing the Civil War
Explanation:
For the first set of questions a photo is the only visual format the others are auditory. For the second set a podcast is people talking which translates to oral communication the other answers lack speech.
Answer:
(3) Dad and mom really wanted things to go smoothly because of mom's new job.
Explanation:
mom > Mom