What is ”AUKUS” which is recently in news?

(A) AUKUS is a new enhanced security partnership between three major economies- Australia and US.
(B) AUKUS is a new enhanced security partnership between three major economies- Australia, UK, and US.
(C) AUKUS is a new enhanced security partnership between three major economies- Australia, UK, and Japan.
(D) AUKUS is a new enhanced security partnership between three major economies- Australia, India, and US.