TASK DEFINITION: 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". 
PROBLEM: [header] How to paint masonry walls [title] Remove any flaked or peeling paint from the masonry. [step] If the wall has already been painted, you need to remove any old paint that is loose, peeling, or flaking away. On an exterior wall, this is most efficiently done with a sandblaster. <sep> (A) New paint must be removed from the wall first, gently scraping around the edges with a rat-tail tail reciprocating scraper. This is most often done on exterior paint walls that are still meant to protect it from debris. (B) In areas where a sandblaster would be too messy and cumbersome, loose paint can be removed with a stiff wire brush and a paint scraper. [substeps] Failing to remove loose and peeling paint can result in the paint flakes mixing in with your fresh coat of paint and marring the finish. (C) [substeps] Make sure to turn off the water. Do not flush the wall down the drain. (D) If there is a paint-resistant paint strip still clinging to the wall, it may be painted to the wall as well, but not directly under it. [substeps] Using a sandblaster may be wise, but if the paint is not taking off, it may be better to start by sanding lightly.

SOLUTION: B

PROBLEM: [header] How to bake kabocha squash [title] Cut the stem off the top of the squash. [step] Place the tip of a sharp kitchen knife 1 inch (2.5 cm) from the stem of the squash. Penetrate the skin of the squash and cut around the stem. <sep> (A) Lift the peel off the top of the squash by turning the knife counterclockwise and keeping pressure on the peel. Tear off the top of the squash by turning it sideways with a sharp knife. (B) Pull the tender sections from the stem and discard the central core. [substeps] Sometimes you'll need to water the squash to dry it out. (C) Then, pull up on the stem to remove it. [substeps] You need a sharp knife to cut through the thick skin of the squash. (D) [substeps] If possible, have someone else cut the squash up to ensure that it is safe to be cut into pieces. [title] Boil the squash to turn it into bite-sized pieces.

SOLUTION: C

PROBLEM: [header] How to identify and treat noise phobias in cats [title] Provide a safe spot to hide. [step] Cats like to take cover in confined places for stressful situations. Put a bunch of toys and a favorite blanket in a comfortable hiding spot, like a crate or a closet that your cat can take cover in. <sep> (A) If your cat does react " loud " to a noise, like running into a room and possibly banging something into the wall or cabinets, it might not necessarily have some sort of negative psychological reaction. [substeps] A true fear of sounds can be a very negative reaction to loud noises. (B) [substeps] While waiting for the noise to stop, have a buddy gently nudge your cat to the safer spot so it will calm down. You can then search the room with a treat to give it a sense of security in trust. (C) [substeps] A covered hiding spot may make your cat feel more at ease. Try giving it a box or crate in a quiet place with a blanket draped over the top. (D) You may also want to place a small lamp to draw pet attention to it. Some places to hide include : [substeps] A cupboard behind a fence on a playpen on a ladder [title] Consider moving the curtains.

SOLUTION:
C