The answer is D. The program prints:
3
Why?
count goes through the string and counts how many times ‘a’ appears.
Trace table
A trace table follows the program step by step. Here’s this one:
| letter | matches? |
|---|---|
| b | |
| a | yes |
| n | |
| a | yes |
| n | |
| a | yes |
The code again
word = "banana"
print(word.count("a"))Try it: change one number in the program and predict the new output before you run it.