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". 

[header] How to get a life [title] Define what a life is to you. [step] This notion of " a life " is subjective. You need to reflect on what is important to you. <sep> (A) Who does what matters to you? Does your job matter? What is your house like? Is anyone there to support you? Where do you see yourself in five years? How would you do without your parents' help? [title] Read about careers. [step] There are many different careers available to you from young age to very young age. (B) You can think about all the great things you have, but find out what (or what) matters to you most the most: don't be forcing perfection on yourself, but list what matters to you the most. [substeps] Many people struggle to define what a life is to them because they " don't know. (C) Not only that, but you need to consider why the person with whom you consider a life is important to you. A life is best made up of three elements: a home, a job, a significant other, and so forth. (D) What do you want to achieve in life? What makes you happy? Only once you think about those kinds of things will you begin to realize how to attain a life. [substeps] Don't let others define a meaningful life for you.
D

A large group of people are seen moving around on exercise bikes. the group <sep> (A) kicks around one another while others watch on the side. (B) move together while the camera pans around. (C) moves around the road and jumps on and off the exercise bikes. (D) rides around, bumping into one another.
B

[header] How to clean old cast iron [title] Scrape the rust off with steel wool. [step] Apply force to the steel wool as you wipe back and forth to remove all of the rust. The dry rust should begin to peel and flake off. <sep> (A) Continue to do this until you expose the raw cast iron under the rust. [title] Wash the cast iron with hot water and dish soap. (B) Continue scraping away the rust until the area is free of bits or chips. [title] Take out the rust with a tin brush, and clean out the inside with a rag. (C) Be gentle as you do this as you do not want to damage the wood. [substeps] Keep the steel wool back, so that its surface isn't touching the glue or caulk on your cast iron. (D) A metal polishing rag or dish rag is ideal for this job. Remove as much of the rust as possible, then clean the whole piece with steel wool.

A