This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to choose a food thermometer
Choose a digital thermometer.
Non-digital " dial " thermometers-sometimes called bi-metallic stem thermometers-are no longer your best option. Over time, the metal on these instruments expands and contracts, causing the inner workings to shift and show an incorrect temperature.

Options: [i] Thermometers as opposed to digital " dial thermometers " feature numeric numbers and have smaller vapor vapor powders added into them. Alternatively, the air in the thermometer's pocket determines the temperature it reaches.; [ii] These thermometers are synthetic, which means they're unnatural. Measure the number of missed minutes you've burned and your exact temperature before selecting a digital thermometer.; [iii] Instead, digital thermometers are easily the best choice. They are easy to read, remarkably accurate, and available in a wide variety of styles.; [iv] Since digital thermometers are nonstick, they can cause your thermometer to drop. This pressure sensitivity also happens during other activities.;
The answer is:
[iii]