This is the Composite pattern, one of the "Gang-of-Four" design patterns (check out their book!).
A string for sure, so answer B.
Ump will be assigned to word2
word1[0:3] gets all of the letters from index 0 to index 3 exclusive (that means index 3 is not included)
Answer:
if u have a question can I see it
Explanation:
so I can know the answer choose