instruction:
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 make homemade hormone rooting powder or tonic [title] Use cinnamon. [step] Cinnamon prevents the growth of fungus. While it acts less as a rooting hormone, the fact that it curbs the fungal growth means that the plants have a great chance to grow without needing any additional help. <sep> (A) [substeps] Consider adding cinnamon powder to your herbal tonic each day by mixing small cinnamon cubes with water and using them for a week. [title] Try using flakes of dried marigolds. (B) [title] Try a silicon tablet or cacao tablet. [step] They can last up to a week, but commercially available forms are fast-acting. (C) [title] Dip or roll the cutting in ground cinnamon. [substeps] If dipping, tip some cinnamon into a cup and simply dip the cut stem end into the cinnamon. (D) Make sure that you use cinnamon in conjunction with regular root growth products, as cinnamon provides an excellent additive that can help regulate the risk of fungal infections. [substeps] Make sure that you use cinnamon on plants that are not affected by herbaceous or fungal infections.
answer:
C


question:
[header] How to stretch to improve your flexibility [title] Warm up your muscles. [step] Perform 40 jumping jacks , 25 squats, run on the spot for 5 minutes, and ten press-ups or ten girl press-ups if you are not strong enough. [title] Start with simple stretches to get used to the concept and feeling of stretching. <sep> (A) [step] You can stretch on a ball or in the sky. Avoid attempting to do anything difficult or hard and figure out what you're doing properly. (B) [step] Does it feel to stretch? That is great. Start slow and do thirty chest presses before you reach bench pressing. (C) [step] Stretching is the single best way to exercise comfortably and to elevate your blood circulation. [title] Work your muscles with the backbend workouts. (D) [step] Stand up and stretch your legs into a wide straddle. Reach down until your palms rest on the ground, keeping your legs straight.
answer:
D


question:
[header] How to grow facial hair fast [title] Keep your face clean and moist. [step] Oil, dirt, and dead skin can create an impossibly thick barricade for your hair follicles to break through. You can grow facial hair much faster if your face is consistently kept clean. <sep> (A) [title] Manage any hair that falls out easily. [step] It's completely normal for hair to grow out after being washed and matted, especially oily facial hair. (B) Buy facial washing products made for your hair. When using a toothbrush or blender, use toothpaste and leave the soft-bristled tip submerged in clean water for 10 minutes. (C) If you have have sensitive skin, or your hair is prone to dryness and rashes, your hair can shrink and grow quicker. [substeps] If you're regularly doing a face wash, leave it on your face for five minutes if you notice problems. (D) [substeps] Wash your face with warm water and a gentle facial cleanser once in the morning and once in the evening. A gentle cleanser is recommended over standard soap, since standard soap can be too abrasive for the skin on your face and may cause irritation.
answer:

D