Disney acquired Pixar in 2006 for approximately $7.4 billion, making Pixar the correct answer.
The transaction was completed on May 5, 2006, as an all-stock deal. Disney issued about 2.3 Disney shares for each Pixar share, bringing Pixar's computer-animation technology, creative leadership, and film library into the Disney company. At the time, Pixar was led by Steve Jobs, while Ed Catmull and John Lasseter were central figures in its creative and technical operations.
The acquisition grew out of a long distribution partnership. Disney had distributed Pixar films including Toy Story, A Bug's Life, Monsters, Inc., and Finding Nemo, but relations between the companies had become strained. Disney's purchase restored their strategic partnership and strengthened Disney Animation.
The deal is often confused with Disney's later purchases of Marvel and Lucasfilm, or its 2012 acquisition of Lucasfilm. Twenty-First Century Fox was acquired much later, in 2019. Pixar remains a distinct animation studio within Disney and continues to release films under its own name.