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". 

[EX Q]: A man sits down by the sidewalk playing a guitar. A black man approaches to watch the guitarist perform. a woman <sep> (A) approaches to sing with them and they begin to have a conversation. (B) stands by recording the performer. (C) comes holding a guitar made out of materials. (D) at various functions watches on as the guitarist plays.
[EX A]: B

[EX Q]: [header] How to plant switchgrass [title] Pick a switchgrass variety. [step] If you look for switchgrass at your local nursery you may just find a plant that's labeled " switchgrass, " but there are actually several varieties that differ in color and size. Switchgrass blooms for almost half the year, and during the winter and spring it's usually brown. <sep> (A) [substeps] Magnolia trees produce about 50% of the moisture. Maple trees produce 50% of the moisture per year. (B) Both varieties of switchgrass produce pretty stunning flowers, unique patterns, and flowers. Most also have phlebotomists at the planting areas where it grows. (C) These are factors to keep in mind when you're choosing a variety for your garden. Here are a few types commonly grown in home gardens : [substeps] Northwind: grows four to six feet tall and produces yellow blooms. (D) Pine needles will establish a base that's ready for planting a newer, more established fire from. [substeps] Switchgrass colors for more variety can also be found at a garden center or online.
[EX A]: C

[EX Q]: [header] How to find a boyfriend (teen guys ) [title] Come out. [step] Coming out with your sexuality will relieve you of a burden. It is a lot harder for you to meet others if no one knows your situation. <sep> (A) Some people keep hiding their sexuality on their social media profiles because they worry that they will be judged. Exposing your sexuality will help you work on overcoming your shyness. (B) A big part of adjusting to becoming a teen girl is the recognition of who you are as an individual. Be upfront about who you are and what your sexual orientation means to you. (C) Taking some time out can help relieve the load that comes with being exposed to your sexuality. Expressing your own positives can help bring you joy and happiness in the long run. (D) Coming out conveys your confidence, and for many this is attractive. [substeps] This can be an incredibly difficult task for some.
[EX A]:
D