Answer:
Hi!
The answer to your question is option C. Jenny realizes she doesn’t know how to pronounce a key word for her presentation.
Step-by-step explanation:
The speaker icon in online dictionaries is a tool given to show readers how to pronounce a specific word.
If Jenny only wanted to know the definition of a word, looking up the word in the dictionary and reading it would had been enough. But because she clicked on the speaker icon that reads the word out loud, we can tell that what she really wants is to learn how to pronounce the key word for her presentation.