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 root the nexus 7 [title] Back up all information on your nexus 7 tablet. [step] All personal data will be erased from your tablet during the rooting process. [substeps] Sync your personal information with google's servers, copy your data over to your computer, or download a third-party cloud storage service app from google play store. <sep> (A) [title] Navigate to the wugfresh website at http: // www.wugfresh.com/nrt /. [title] Select the option to download the nexus root toolkit. (B) Open a folder that houses your cellular data, save the data you want to share and tap backup to backup it to your computer. [title] Follow the on-screen instructions for rooting. (C) [title] Install os x 10.1 on your tablet. [step] After installation, simply tap the " windows " icon on the home screen. (D) If you have a gigabyte device, your tablet will search your phone's applications folder for a root disk that will be used for rooting. [title] Download the latest android root installer.

SOLUTION: A

PROBLEM: [header] How to clean sperrys [title] Remove caked-on dirt with a bristle brush. [step] Using a soft toothbrush or a bristle brush made for leather, gently brush away any dirt, dust, or debris. Brush the leather with soft strokes in the same direction. <sep> (A) [substeps] Brushing the pricier areas first helps to allow for better handling of all surfaces. [title] Dust the back and sides of the flaked-off parts with a lint-free cloth. (B) If you scrub the shoes in multiple directions, you're likely to leave scars. [substeps] Use a rubber-bristled brush rather than a nylon-bristled brush. (C) [substeps] When applying pressure, make sure to keep the bristles away from your sperrys' feathers. It helps to remove any stuck on insects. (D) [substeps] Sweep or wipe off any grime stuck to the surface. Dry the area with a soft cloth or a clean towel afterwards.

SOLUTION: B

PROBLEM: [header] How to decide on whether to get a rowing machine for home exercise [title] Select equipment that will provide physical exercise. [step] A rowing machine should not produce boredom and the type of machine chosen should have minimal risk of injury and be easy to use. [title] Understand the extent of a workout that is gained by using a rowing machine : [substeps] Aerobic benefits: the rowing machine stimulates the heart and lungs. <sep> (A) Cardiovascular benefits: the rowing machine stimulates blood flow to the heart. It provides a greater means of oxygen, so it is almost a necessity for doing a cardiovascular workout. (B) The machine does not keep you confined inside a machine for prolonged periods of time. Cardiovascular benefits: cardiovascular benefits are apparent more closely in a water workout than from a traditional rowing machine. (C) Low blood pressure: the heart pump releases blood glucose and regulates the heartbeat. Cardiovascular benefits: the rowing machine connects the heart to the lungs by pumping it with adrenaline. (D) The stimulation is reached through the specific intensity and continued level of the exercise being taken. The levels needed for this aerobic workout is contingent upon the age and health of the person who is exercising.

SOLUTION:
D