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".
--------
Question: [header] How to avoid water retention [title] Have a healthy diet. [step] Ensuring you have a healthy, balanced diet is a good first step to avoid water retention. Water retention can occur due to imbalances in your diet, deficiencies of some vitamins and minerals, and having too much salt. <sep> (A) One study found that people with excess salt = no water retention. " imbalance " can add up as a reason for water retention and include making it much more difficult to stay hydrated. (B) Excess salt raises your blood pressure, resulting in inaccurate results. Look for foods that are low in salt and low in water. (C) Eating a balanced diet will help to reduce the chances of water retention occurring due to these issues. [title] Eat food that is rich in potassium. (D) [substeps] If you have recently cooked or baked a meal, make an effort to change your recipe one day. This can help your body prevent the retention.

Answer: C

Question: [header] How to start a nanny business [title] Get a list of prospective nannies. [step] Advertise in newspapers, online ads, put signs up, and give flyers. If you have experience in child care, solicit coworkers and contacts to see if they are interested in providing nanny service or if they know others who would. <sep> (A) Online groups like the sunshine and children's network are great places to begin looking. Be sure to approach your current employer, perhaps to ask if they know of a nanny who would be willing to offer you a job. (B) Also keep in mind if someone does not want a flyer they are not interested so don't bug them they might spread the word, ruining your business. [title] Do a thorough background check on each candidate. (C) [substeps] Make sure to get a roster in question. Nanny cannot become a nanny, but a general guideline for a daycare provider's operations is to have several nanny's staff. (D) Maybe advertise with a school newspaper or with individual business cards. If the nanny is from a more prestigious family, contact them later so they can accept your offer.

Answer: B

Question: [header] How to cage tomatoes [title] Use metal tomato cages if you don't have a lot of space in your garden. [step] Metal cages are thin and flexible, so you can squeeze them into a smaller space. This is especially helpful if your tomato plants are planted close together. <sep> (A) They can also help prevent the tomatoes from fleeing when the weather warms up. [substeps] Metal cages will cost between $10-20 usd per square foot. (B) They also insulate the tomato from the elements and help produce oxygen, which will kill the plants. [substeps] Metal cages should also be tall and at least 12-15 feet (3.7-5.7 m) high. (C) [title] Get tomato cages that are at least 5 feet (1.5 meters) tall. [step] 5-foot cages will support most tomato varieties. (D) [substeps] [title] Space tomatoes in groups of five. [step] A single tomato group of six to ten tomatoes in row is about three to four square feet.

Answer:
C