Answer:
option A
Leonardo da Vinci's The Last Supper is often considered his masterpiece.
Step-by-step explanation:
The original sentence has some flaws which are :
1. The title of the painting is not written in the proper format for writing title of artistic works
2. The repetition of Leonardo da Vinci's name is not necessary as a simple pronoun could suffice
3. The word "Masterful piece" could be better replaced by "master piece".
From these, the best option that revises the sentence in the most appropriate format is option A:
Leonardo da Vinci's The Last Supper is often considered his masterpiece