Multi-select problem: How does the next paragraph end?

How to use blood meal
Test your soil to see if it needs nitrogen.
Buy a simple soil test from your local nursery or garden center and use a sample of soil from your garden or plant container. Follow the test kit instructions to get accurate results.

Choices: [I] If you have any concerns, use the blood meal to determine whether or not the soil is actually nitrogen-rich. If it does not, contact your local nursery to find out more.; [II] Urine tests can tell you how much nitrogen a plant needs by looking for signs of nitrogen-deficiency (bv) levels. Colored urine tests are good because the test helps confirm a potential bv but not eliminates it in humans.; [III] For large grassy areas, test your soil at night. For a small area, test your soil in the morning.; [IV] The test will tell you the levels of nitrogen, phosphorus, and potassium. For example, the test will tell you if there's a surplus of nitrogen, sufficient levels, a deficiency of nitrogen, or if it's completely depleted.;
[IV]