Walked because its what he's doing

If two similar waves are traveling in the same medium, then they have same wave velocity. so we can infer that

Now, as per the formula ~ we know that :

Now, we can write it as :

And it's also given that frequency of wave A is 3 times that of frequency of wave B.
So, let's add the relation to our equation ~



So, choice C is correct ~
Answer:
The pressure is on.
Explanation:
This line is considered a synedoche in poetry which is a figure of speech in which a part of something represents the whole. This line is from "Casey at the Bat" and in this saying it means he has 5,000 fans watching him and cheering, which is 10,000 eyeballs. The 'tongues' are referring to the fans.