The answer is C. The program prints:
11

Why?
len counts every character, including spaces and punctuation. ‘I love code’ has 11.
Trace table
A trace table follows the program step by step. Here’s this one:
| count | character |
|---|---|
| 1 | I |
| 2 | (space) |
| 3 | l |
| 4 | o |
| 5 | v |
| 6 | e |
| 7 | (space) |
| 8 | c |
| 9 | o |
| 10 | d |
| 11 | e |
The code again
word = "I love code"
print(len(word))
Try it: change one number in the program and predict the new output before you run it.