Which of the following scenarios shows the best example of someone giving consent?

A. Lenox agrees to attend a party with his friends, where he later asks to leave. His friends convince him to stay.
B. Sarah's friend shares that she is moving away soon. She tells you it is okay to share the news with one other friend to plan a small party.
C. Tati goes to see a movie with her brother. After they have already bought tickets, her brother tells her it is a horror film.
D. Tessa's sister gives her permission to borrow a specific shirt from her closet. Tessa takes a different shirt instead, since it is still a shirt.​