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 eat to improve fertility [title] Be aware that having a balanced, healthy diet does not guarantee higher fertility. [step] There are many online sources and several books that claim that switching to a more balanced and healthy diet can lead to improved fertility. Though it is always beneficial to eat a healthy diet, it should not replace other fertility treatments and options. <sep> (A) Making sure that you are eating adequate and not too many calories or trans fats can lead to strong, lasting health patterns. In order to see results, eating a balanced diet is essential. (B) The key to avoiding eating more fertility treatments is truly taking in proper nutrients and the exercises you perform regularly. [substeps] Vitamin b6, vitamin b12 and high quality foods like bread and fruits help you to relax and begin functioning properly. (C) [substeps] Healthcare providers believe that we often mistake pre-existing disease as the cause of our fertility problems. These people often mistake their diet as their only sources of positive energy. (D) However, maintaining a healthy diet and lifestyle may reduce a woman's risk of irregular ovulation and could improve her chances of getting pregnant. [title] Keep in mind fertility diets may only work for a small subsection of women.
D

[header] How to make simple five minute frosting [title] Beat the butter in a medium-sized mixing bowl until smooth and fluffy. [step] You can use an electric mixer or a food processor. [title] Add the powdered sugar a small amount at a time. <sep> (A) [step] Use the stand mixer to mix the ingredients on medium speed until smooth and sugar dissolves. Add the vanilla, milk, and eggs. (B) [step] It will increase the strength of the frosting gradually. [title] Once 1 ½ teaspoons of powdered sugar is added, whip the butter. (C) [step] The mixture will appear dry and crumbly at first, but it will become smoother. [title] Gradually stir in the half-and-half or milk until you have reached your desired consistency. (D) [step] The more powdered sugar the healthier the frosting is. [title] Add the vitamin e oil, and stir to combine.
C

[header] How to word thank you notes [title] Be organized as to who gave you what gift, so there won't be any mix-ups. [step] If you're opening presents after an event, jot down the name and gift given by each person. [title] Make sure you start at a reasonable time. <sep> (A) [step] Start your thank you cards as soon as possible after your event. No one likes getting a thank you card years after said occasion. (B) [step] If you intend to gift multiple gifts, for example, you can only give one for each person you want to thank. [title] Give a handwritten note saying what it is you are thankful for. (C) [step] If you're promoting something specific and special, early delivery will impress everyone and, if possible, earn you a lot more points on certain topics. Never let a recipe or tip kill your time. (D) [step] Often, along with " well, it was a pleasure giving you this ", these are the exact same things. While it could be good to spring it on new hosts, it's still a surprise if it is too late.

A