Q: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
A woman is seen spreading sunscreen on a child's back followed by several shots of sun screen bottles and people putting it on. scientists <sep> (A) are seen laughing about the suntan lotion and speaking to one another. (B) add sunscreen and use a substance around the child's back. (C) are shown as well as a man speaking to the camera and more people putting sunscreen on others. (D) then begin working on sunscreen along with cameras aiming at various areas of the boy's body and speaking to one another.
A:
C