Which Org structure is best..?

Q : you are managing a large and complex project. This project will use many technologies and you will need experts from various domains to come toether. This project will have a long timeline of 4 years. You need a huge team of 200 people. Which Org structure is best to execute this project..?

A) Weak Matrix
B) Strong Matrix
C) Functional
D) Projectized


B. Strong Matrix




Thanks , I was little confused on why a projectised org is not better than Strong matrix...

What's the official answer, pls?