Which sentence correctly uses a COMMA with a dependent clause?
a. When Alfred Hitchcock was making the movie The Birds in the 1960's, he borrowed a special camera from Walt Disney to film the infamous bird attack scene.
b. When Alfred Hitchcock was making the movie, The Birds in the 1960's he borrowed a special camera from Walt Disney to film the infamous bird attack scene.
c. When Alfred Hitchcock was making the movie The Birds in the 1960's he borrowed a special camera, from Walt Disney to film the infamous bird attack scene.