Given the task definition, example input & output, solve the new input case.
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".
Example: [header] How to create a christmas tree forest [title] Consider the type of tree you want to plant. [step] There are a wide variety of christmas trees and include fir, pine, spruce, cypress, and cedar. These trees thrive in different climates and look different from one another. <sep> (A) It is important to research the tree before setting up your tree to try it out to make sure you can write the tree's growing season so that you can get the most supplies you need. If you're just interested in having a tree stand out, then make sure to check for the following : [substeps] Spruce trees. (B) [substeps] Trees green may be used in a mix of green and evergreen. Greens, such as pintos and olive oil, may be more delicate than these. (C) Where the trees grow together is up to you. [substeps] Spruce trees light up the night for hours in the morning and drown out the morning sunrise between afternoons. (D) Think about where your tree forest will be located and choose a tree that can thrive in that climate. [substeps] Balsam firs are a popular christmas tree species that grow in the northern united states and canada, in hardiness zones 3-5 or states like minnesota, north dakota, and montana.
Output: D
This is a good example. Only option D is about Christmas trees. So, it's the correct option.

New input case for you: [header] How to be a good prom date (for guys ) [title] Help her make plans. [step] Prom is not just about the dance itself. The prom experience includes transportation, pictures, dinner, the after party, and more. <sep> (A) Be there to attend as well as drive her home, so her parents know that the two of you attended. Furthermore, if you sneak back in and she thinks you were over by the time you arrive, there's a good chance she will be just as disappointed as you're likely to be. (B) It's also about the prom ceremony and any other special events that will be scheduled (music, food, and pictures is preferred). Offer to help her and your mom arrange the layout, the location, and the time, whether it's dinner or a movie. (C) Offer your assistance with the planning process to not only share ideas, but also to show you care. [substeps] Discuss whether you will be attending prom with a group or whether you two will be attending alone. (D) If you can help her make a planning plan, you can help her find excuses to go to prom. It's a big commitment that she will need to make.
Output:
C