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

How to keep green onions fresh
Fill a glass or tall jar with 1-2 inches (2.5-5.1 cm) of water.
Use a glass or jar that is heavy on the bottom so that it easily stays upright. The water should be cold or room temperature, but not warm.

Possible answers:
-The glass or jar should be tall enough so that it can keep the green onions upright. For example, a pint glass or a large canning jar works well.
-For best results, fill the jar with at least 1-2 inches (2.5-5.1 cm) of cool, carbonated water. Ensure that the liquid is hot or at least around 120 degrees fahrenheit (15 celsius).
-For the best flavor, use bright, leafy green onions in the jar. Crushed green onions will produce a more vibrant green that adds a whole new dimension to your relish.
-Make sure that the water to which the salt was added is cool, neither too cold nor too hot. Good choices include warm water, clean tap water or from a dishwasher.
The answer is:
The glass or jar should be tall enough so that it can keep the green onions upright. For example, a pint glass or a large canning jar works well.