The answer is B. The program prints:
buzz

Why?
A dictionary stores pairs: a key and its value. sounds["bee"] looks up the key ‘bee’ and gives back its value.
Trace table
A trace table follows the program step by step. Here’s this one:
| key | value |
|---|---|
| owl | hoot |
| duck | quack |
| cat | meow |
| bee | buzz |
The code again
sounds = {
"owl": "hoot",
"duck": "quack",
"cat": "meow",
"bee": "buzz",
}
print(sounds["bee"])
Try it: change one number in the program and predict the new output before you run it.