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 relieve constipation after surgery [title] Use a stool softener. [step] One of the first medications to try if you're feeling constipated is a stool softener. These are easy to find over-the-counter and can help get you back on track. <sep> (A) [substeps] The way that stool softeners work is that they draw water into your stool from your intestines. This makes your stool softer and easier to pass. (B) [title] Take 600ml of stool softener before a meal. [step] Most stool softeners kill the production of prostaglandins. (C) [substeps] One good option for relieving constipation at the time of surgery is a stool softener. While stool softeners do provide temporary relief from constipation, they are expensive and will often disappoint you. (D) These medications are named for their antioxidant properties, which help reduce diarrhea and keep your stools from becoming irritated. [substeps] Remember that: the next time you're using an over the counter stool softener treatment, be sure to follow the dosing instructions.
A

[header] How to outfit a basic toolbox [title] Purchase a tape measure to include in your toolbox. [step] A tape measure comes in handy when you need to know the dimensions of a room before buying a new piece of furniture or centering a picture on the wall. [title] Include a box knife in your toolbox. <sep> (A) [step] A box knife, or utility knife, can be used to open packages, cut small pieces of wood or slice cardboard. [title] Put duct tape in your toolbox. (B) [step] It is critical that you list the dimensions which make up that box. If you don't, it will go in unusable pieces. (C) [step] A box knife (or a small, average sized box knife) can make a toolkit for a desktop store. For a playroom around a certain age, a box knife can provide yourself with more choice of tools and accessories and will make enough room for accessories that might otherwise be overlooked. (D) [step] This is to make sure all the box knives you buy have empty compartments and can be tried easily. [title] Purchase a pack of set base bonuses.
A

A man walks on a tight rope between two sheer rock faces. A view of an old world european city is seen. the man <sep> (A) jumps off the little rope and stands in the middle of the rock. (B) falls into a pool in front of the rocks. (C) bungee jumps and floats across a water. (D) sits on a the tight rope high up in the air.
D