Most Expensive Musical Instruments in the world? Quiz

Let's see if you can name the most expensive musical instrument in the world as of February 2018. I'll give you multiple choices to make guessing easier.

A. Fender Stratocaster owned by Eric Clapton
B. MO-45 Martin Guitar
C. Violoncello made by Gennaro Gagliano
D. Violin (The Hammer) made by Antonio Stradivari
E. Viola ('da Salo') made by Gasparto Berolotti

The winner will get upvoted.

Thanks!