Partial Credit for Classification Questions

[KLong10]

I have created a quiz in Mastery Connect with a classification option. Under the "More" dropdown for grading, there are four options that I am not clear as to their meaning. Where can I find some clarification instead of having to grade/regrade every student's work. 

1. Partial Match per cell

2. Partial match per cell- max score

3. Partial Match element

4. Partial Match element-max score